Home | Survey | Payment| Talks & Presentations | Job Opportunities
Journals   A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Science & Technology Information
1001-9960
2013 Issue 2
xin xi shi dai da xue shu xue jiao xue mo shi de tan tao
fan xi liang
..............page:190
zuo yang hu liu yu de zu qun yu wen hua lue lun
cheng yan
..............page:15
shuang shi su zhi jiao shi dui wu pei yang dui ce yan jiu
huang hong li
..............page:292
ji yu bp shen jing wang luo de yong pin xiao neng ping gu yan jiu
shi de fang ; yu xuan zhao ; zhang xiao dong
..............page:146-147
qian tan te kan bian zuan xiang mu zhong de jin du guan li
hou quan feng
..............page:484,486
yao wu he cheng fan ying ke cheng jiao xue yan jiu
chen ai hua
..............page:14
qian tan su hua biao ben de zhi zuo ( dong wu )
yu hang
..............page:164
gao zhi yuan xiao ban ji guan li tan xi
wang peng
..............page:280
xin huan jing xia tu shu guan ren cai dui wu jian she
wang yu chun
..............page:482-483
10kv xian lu chang jian gu zhang de fen xi yu cha zhao
chen wei
..............page:429,431
hou mei ceng fen ceng kai cai tuo jia zuo ji shu shi jian yu tan tao
li lin ; tian yue feng
..............page:420-421
yi ren wei ben shou yi fen pei yan jiu chu tan
shi hong liang ; geng zheng ping
..............page:90
ying yu zi ran pin du yu han yu pin yin zi mu hui hun xiao ma ?
long jiao ; niu yue hui
..............page:220
zhuan bian jing ji fa zhan fang shi : fu ling nong ye zen me zhuan
huang shi lian ; he rong
..............page:113
qian tan qi ye si xiang zheng zhi gong zuo
cui wen jing
..............page:119
tie lu xia qi hun ning tu shi gong ji shu
wang li yan
..............page:445-446
svg shi liang tu jie shao yu ajax bian cheng ji shu
jiang ning
..............page:296
qian tan zhong guo gu ji zhuang zheng de fen qi yu xing shi
zhao hong fang
..............page:480-481
ji yu guang xi ji ti lin qu ke chi xu jing ying de lin quan zhi du yan jiu
qin xiu hua ; xiang chang wu ; su jie nan
..............page:145,147
gps shu ju chu li ke cheng jiao xue fang fa chu tan
zhao xing wang ; zhang cui ying
..............page:75-76
zi dong shi bie ji shu ji qi zai mei jun zhong de ying yong
liu peng ; li xing yin ; zhang hua
..............page:310
tan xi gao zhi yuan xiao shi shi fen ceng jiao xue fa
chen wen juan
..............page:285-286
tu xing yu bei jing li lun dui fan yi de qi shi
liu bing quan ; qu ru
..............page:61,64
qian xi you er yuan shuang yu jiao yu
tao long mei
..............page:351
ji yu duo agent de tong xin wang luo zi zu zhi xi tong yan jiu
zhang xiao dong
..............page:311-312
guo you jian zhu qi ye lv xing she hui ze ren chu tan
liu zuo qi
..............page:115
xin xi xi tong an quan bao mi de ce lue yu guan li
wang dian ; zhu jian
..............page:297
jun xie zhuang bei bao zhuang biao zhi te dian yu jiao xue mo shi gai ge tan tao
liu zhen yu ; liu peng ; yang yuan ; zhang bao hua
..............page:214,217
shan di cheng zhen jie wu gan guan she ji yao dian fen xi
wang peng fei ; wang feng
..............page:483
jiao ti chuan yi bi ji pei xun qian xi
li meng zuo
..............page:216-217
lun zhuan zhi mei tan guo you qi ye ren li zi yuan pei zhi de you hua
zhang bo ; zhang zheng
..............page:137-138
yun yong sen lin jin zi ran jing ying li nian chuang jian yan an sen lin cheng shi
chang sheng zhong ; ma yan ; wu long
..............page:388
gao zhi jiao yu xiao qi he zuo chang xiao ji zhi yan jiu
zhang song hui
..............page:288
jian zhu she ji zhong se cai de yun yong yan jiu
liu lian
..............page:327
tou shi chuan mei yu lun jian du yu si fa du li
jia zhong
..............page:5-6
qian tan ying yu ting shuo jiao xue
li ya lei
..............page:252
shou shu shi hu shi dui shi guan ai gen zhi shu huan zhe shi shi shu qian fang shi de xiao guo guan cha
ni jin ping ; chen rong zhu ; wang ya juan
..............page:470-471
xin ke cheng bei jing xia dui jiang shou fa de zhong xin si kao
zhang li jie ; hou ying
..............page:110-111
she qu wei sheng fu wu yu lao nian ren sheng cun zhi liang de duo yuan hui gui fen xi
yan wen jun ; lu zhao jun ; gao xiu yin ; zhou ping
..............page:32-33
qian tan duo mei ti jiao xue fang fa
yang jun ling
..............page:117
qian xi ying shi jiao yu yu su zhi jiao yu
tang yu hui
..............page:93
qian tan ye ya chuan dong ke cheng jiao xue gai ge yu shi jian
wang peng ; cheng gang
..............page:210
guan yu zhuang ji fu mo zu li de tan tao
li feng ; luo shang jun ; liu fang yuan
..............page:271,273
guo yang hua na jian rong - gui zuo lan guang du fa ce ding tuo liu ji zhong de er yang hua gui
kang jia ; hao xuan ke ; cao xing wang ; zhang zhong ting
..............page:473
ke ji xin xi zheng gao
..............page:封3
ji xie gong cheng cai liao jiao xue gai ge chu tan
chen xiang yang
..............page:213
ji yu lvq shen jing wang luo de le qi shi bie fang fa
li chun jie
..............page:153
jing niao dao qian lie xian deng li zi dian qie shu de lin chuang bing li fen xi
wang dong dong ; wang jian
..............page:203-204
lao nian fu wu chan ye qian jing wu xian
chang jun
..............page:105
lun dian zi jing ji chan ye de jian kang fa zhan
li fan yun
..............page:334
yi ge fan ying kuo san liu xing bing mo xing de fu za dong li xue
hu yang lin ; zhang guang
..............page:199-200
cst zai dai shi shu song ji zhong de xuan xing yu ying yong
zhu zhong xi
..............page:422-423
bian ge xue xi fang shi ji huo yu wen ke tang
xue bao qin
..............page:516
gong xiang jiao xue zi yuan de ke cheng wang luo ping tai jian she
wang bin ; zhang ning ; wu feng jiao
..............page:3
zi bi zheng er tong yan yu neng li xun lian de ge an fen xi
jiang jing zuo ; liu ling ling
..............page:122-123
shi xi dian zi ji shu zhong de dan pian ji ying yong
chang xiao kai
..............page:256
38 li jing xi gan zang wai ke shou shu hu li pei he
zhu wei hua ; chen rong zhu
..............page:465
dian kong qi you pen she qi kai qi xiang ying te xing ce shi yan jiu
zhang zhen dong ; wang ze zhong ; sun tao ; lu zuo ; sun yue dong
..............page:44-45
ji ceng tu shu guan ren cai dui wu jian she
wang xiao li
..............page:464
gao xiao gong gong xuan xiu ke shu xue lei ke cheng de she zhi yu si kao
xu jian cheng ; liu juan
..............page:279-280
shan bei mou 35kv bian dian zhan di ji jia gu chu li
song da qiang
..............page:428
kuang jia jie gou fang wu de shi gong zhi liang kong zhi
jin si quan ; zhao yu ying
..............page:447-448
hun ning tu shu zhi yan jiu zhong lie feng mo ni de xin fang fa
chen fa jia ; sun cun bo ; han ya hui
..............page:73,76
sgz880/800 xing yun shu ji wo di ji tou bu she bei pei tao xing shi de gai jin
qin jian guo ; wen jing hui ; jiang hai yu
..............page:417
ti yu jiao xue zai dang xia ru he peng bo fa zhan
yu tian bo
..............page:348
yin jiang xian wen wu bao hu he li yong de si kao
jiang min ; jiang teng
..............page:246,248
na mi cai liao zai shui chu li zhong de ying yong
xu hua bing ; liu xiao gang ; han cai juan
..............page:266
rang li shi ke tang jiao xue geng wan mei
wu li hua ; xu jian guo
..............page:354
zhou lei ling jian shu kong jia gong gong yi fen xi
wang ni na
..............page:291-292
kua wen hua jiao ji yu zhong xi wen hua chong tu
li ya lei
..............page:224
ti gao qi xiang se pu fa zhen duan bian ya qi gu zhang zheng que lv
yang chun ming ; fu qiang
..............page:404-405
dui qiao liang gong cheng shi gong zhi liang cheng zhi xiang guan wen ti de qian yi
gao ming kuan ; gao yuan liang
..............page:411
tu xing - bei jing li lun yu guang gao fang ni yu
feng de zuo
..............page:219
qian tan ftth ji shu zai shi ji zhong de ying yong
lu lei
..............page:316,318
ye suan de dai xie ji qi dui rou ya mian yi fan ying diao jie zuo yong
liu dong bing ; li zhu nan
..............page:188
qian tan shi gong xiang mu zhi liang guan li
jiang shuo
..............page:126
qiao ben shi jia zhuang xian yan he jia zhuang xian ru tou zhuang ai guan xi de yan jiu
tian lin ; chen bin ; wang ya bing
..............page:454-455
zhong xue shu xue ying yong yi shi pei yang tan jiu
lv xia ; zhao shou xiang
..............page:367
jia yong zhong yang kong diao xuan ze yao dian
yin lei
..............page:476-477
qian tan pu tong gao xiao jie gou li xue ke cheng jian she yu gai ge
zhang yan min ; guo xiao yun ; wang li
..............page:193
qian tan she wai gong cheng tu jian zhuan ye she ji jing yan
chen zhi wei ; jie bao an
..............page:398
ji yu duo xiao bo de bei er tu xiang you sun ya suo yan jiu
liu rui xue ; hu hong ping ; wang jian zhong
..............page:517,520
ji yu vtk de di xia guan xian san wei ke shi hua yan jiu yu shi xian
deng kai ; cai zhu jing
..............page:150
guo mi sm3 suan fa zai cos shang de yan jiu yu shi xian
wu juan
..............page:294-295
zhi neng jia ju zhong de chuan gan ji shu de yan jiu
zhu li bin
..............page:212-213
jian she xiang mu tou zi jue ce jie duan de zao jia guan li
liu zhi hua ; ma ge liang
..............page:500,502
matlab zai mai ke si wei su lv yan jiu zhong de ying yong
wei zhong hua ; jiang zhan cai ; song yun fei
..............page:148-149
wei ce liang ti gong bo hao yong hu de 114 shi shi cha xun gong neng
chu hai chun ; sun sheng bo
..............page:320-321
qian tan dang qian hui ji zhi ye dao de jian she
dong hong yun
..............page:134
he bei mei tian shi tan er die ji sha yan li du fen bu te zheng
guo ya ya ; zhang su mei ; zhang yu lin
..............page:170,172
3d shi dai zai si kao
zheng zuo
..............page:253-254
ji chu dian gong shi xun ke jiao xue gai ge de qian tan
di chang zuo ; shang chang chun ; chai zuo
..............page:197-198
guan yu gao xiao jin kou she bei feng xian wen ti de si kao ji fang fan
zhang wei ; huang yong ; zhu fei yan ; cao xu
..............page:78
dang dai guo nei gao xiao fu dao yuan fa zhan zhong mian lin wen ti yu jie jue fang fa chu tan
ren feng ; liu hong jiao ; chen ming yue ; jiang zuo
..............page:109
qian tan zhong zhi sheng yu wen su yang de ti sheng
guo pin
..............page:362-363
da xue sheng ren ji jiao wang tan xi
zhang li
..............page:514
qian yi gong gong yu le chang suo de xiao fang an quan guan li yao dian
liu xing lin ; kang wei qing ; kang zhen xiu
..............page:496,498
di tie sui dao bao po shi gong dui ji you jian zhu wu de ying xiang
wang guo long ; xia bing bing ; xie zi qi
..............page:196-197
jun dui kai fang xing shi yan shi ren cai dui wu jian she
an yin ; meng xiang gui ; wang wei
..............page:120-121
ju yu wang ip chong tu wen ti de tan tao
ding jie ; zhang xin
..............page:300
jian zhu gong cheng shi gong ji shu guan li
cui hai shan
..............page:456
ji yu vc he ug de qi che bian su qi san wei ling bu jian shu ju guan li xi tong de she ji yu kai fa
wang xiao qi ; liu zuo nan ; tian ying
..............page:41-42
dian dong jiao lian che de she ji yu shi yan
fan qin man ; bao xu
..............page:58,60
ti sheng qi ye nei bu shen ji zhi liang de tan tao
fan hui bo
..............page:133-134
Effects of Medium temperature on lean burn combustion duration of n-butanol
li hai feng ; zhang ji peng ; ma yong zhi
..............page:7-8
da xue sheng kao yan qun ti fu wu ce lue yan jiu
wan ya hong
..............page:132
xin xing she pin zong ce yi zai lei da ce shi zhong de ying yong
su yong hui ; hu xiao lan ; zhao su yu
..............page:444-445
er tong bao jian guan li xin xi xi tong de she ji yu shi xian
zhang zuo ; sun sheng gang
..............page:31,33
du di 56 hao jiao shi de qi ji you gan
zhang ya qin
..............page:286
fa hui xiang ( zhen ) zhong xin xiao gong neng tan xi
wan guang gang
..............page:352
gao ya zu he ji liang zhuang zhi yun xing wei hu yu gu zhang fen xi
zhou xiao juan ; yu wen bo
..............page:393
zheng chang ren zuo gu rsa yun dong can shu pian zui xiao er cheng fa jian mo
qiang hai yan ; wu jiang zuo ; shen yu hui
..............page:173,175
qian tan ji yu shu xue suan fa de c cheng xu bian cheng ji qiao
huang hong xia
..............page:307-308
duo ceng ci jiao xue zai gao zhi guang xian tong xin zhong de ying yong
wang xiu lin ; zhang ai ling
..............page:278
jie neng yu huan bao guan yu nong suo bei shu de si kao
hui guang yu
..............page:136
qian tan ru he zuo hao ji chu ce hui shu ju geng xin wei hu
ge shu bing ; zhang hong
..............page:509
duan ceng feng bi xing yan jiu xian zhuang fen xi
wang dong zuo
..............page:415
lun ying han xi yu fan yi zhong de bu deng zhi de xian xiang
li lin zuo
..............page:241-242
be bao zhuang ji tong yong xian shi qi jie kou de shi xian
xie hua ; chen kun
..............page:299
yi wei re chuan dao fang cheng de tui dao
jia hai feng
..............page:159
jiao tong dui shan dong lv you ye fa zhan de ying xiang ji dui ce yan jiu
mou hua ; xie feng ; nie yun xia ; yang de sheng ; sun chang wei
..............page:43,45
mei tan gong ye fa zhan xian zhuang yu fen xi
zhang qin
..............page:106
ji yu matlab gui de yu yin chu li jie mian she ji
song yun fei ; jiang zhan cai ; wei zhong hua
..............page:177-178
bei tie yang ti he cheng fang fa zong jie ji yan jiu
dong ming wang
..............page:160
qi ye ying shou zhang kuan feng xian guan li qian tan
gong mei ya
..............page:131-132
da xue wu li ke tang jiao xue de xin jing jie
liu jing jing
..............page:200-201
ji yu dian li xian zai bo tong xin de zhi neng jia ju kong zhi xi tong
zhang zuo ; zhang xiao jing
..............page:176,178
qian tan quan zi dong dian ci kai shui qi de yun yong
liu hui feng
..............page:511-512
fa ku tao ci chan ye ji qun fa zhan de swot fen xi
wang zhong hui ; zhang hai bi
..............page:53,56
shi zheng pai shui guan wang she ji yao dian fen xi
wu zuo ; zhu lei
..............page:390
dian li xie bo de chan sheng wei hai ji zhi li shi li
zhang yang
..............page:491-492
ji li shi jiao xue fang fa zai wei ji yuan li ke cheng zhong de ying yong
yang jia zhi ; fan xing ming ; xie xiao lan
..............page:201
dan zi you du ci fu shi xi tong de h kong zhi ji qi fang zhen
ma chun jie ; huang dong zuo
..............page:38-39
wei kuang ku ba ti tian zhu jian ce jie guo fen xi
luo hao wei ; hu zuo
..............page:185-186
qian xi guang xian tong xin zai dian li tong xin zhong de ying yong
li ming zuo ; zhang da qing
..............page:298
lun gao zhi da xue sheng chuang ye yi shi pei yang yi wu hu di qu gao zhi yuan xiao wei li
wang xian ; xu yuan yuan ; tao huan
..............page:51-52
ji yu wincc de xiao che gong liao xi tong
zhao ming li
..............page:163
autocad zai kuang jing jian she she ji zhong de ying yong
sun qing hua ; sun peng
..............page:321
lun ma jia liang mei kuang de jian zhu feng shui ge ju
cui he ping
..............page:460
bu tong sha chong ji fang zhi yan ya de yao xiao shi yan
xu qing xiao ; shi xiong bin ; liu yong neng ; zeng wei ai
..............page:481
she hai gao xiao lian meng wen xian zi yuan gong xiang de si kao
xu ping ; li zhen ling
..............page:450-451
qian gobe jie duan tan tong wei su zhi bian hua te zheng ji jie shi
lang hai liang ; qi bin
..............page:504,506
dui shao nian er tong pai qiu dian qiu ji shu jiao fa de tan tao
wang zuo qiang ; hu hua zuo
..............page:338
qian tan ru he gai jin nong lin lei zhuan ye you ji hua xue jiao xue
tian xin zhe ; ren yun lai
..............page:198
tong guan le qi yin se wen ti zhi guan jian
jiang zuo
..............page:331
jia yong dian qi zhi neng kong zhi qi de she ji
li shui
..............page:272-273
ji yu xiao bo bian huan de xin yin xin hao qu zao fang fa
liu xue ; li zuo ; sun zuo ; cui xiao dong ; yang chun zuo ; xuan yong qing
..............page:189-190
shi pin nong suo yu ji yu dui xiang jian suo ji shu yan jiu
pang zhi heng ; ge you jie ; chen chun long ; chen yue lin ; wang chun li
..............page:62,64
qi ye jie dian ji shu cuo shi fang fa qian tan
xie yong sheng
..............page:130
gong cheng zhi tu wang luo jiao xue ping tai de she ji yu kai fa
wen bao qin ; liu zuo zuo ; luo zuo ; tian xue yan ; yuan chang fu
..............page:54,56
chun ji xie chuan dong wu tan xiao che chuang xin she ji
zhao liang ; wu jun ; zheng xiao jun
..............page:204
gu hua ji zai sha mo di qu gong lu bian po fang hu de li lun yan jiu
dong tao ; su yue hong
..............page:180-181
jin shu cai liao zhuan ye ke cheng jiao xue gai ge chu tan
yue li jie ; han jin sheng
..............page:46,48
lun xue xiao ti yu zai du li xue yuan xiao yuan wen hua jian she zhong de yi yi
wang qing he ; wen jian dong
..............page:340-341
suan jian du yu ren ti jian kang
lin xun zhong
..............page:16
matlab zai dian lu li lun ke cheng jiao xue zhong de ying yong
du yan li ; zhao ying ; hu dong mei ; yuan guang jun
..............page:57,60
shi pin ji shi pin bao zhuang cai liao zhong ren ji fen jian ce ji shu de yan jiu
wang yan ; fang jian jun ; zuo zuo ; liu ying ; chen zuo ; guan rong fa
..............page:1
feng xian ping jia zai ya li rong qi jian yan zhong de ying yong
zhou dan le ; wang chong
..............page:461
cha ming kan cha qu huo shao qu fan wei
zhang fei wang
..............page:423
yi dong xue xi zai pei xun zhong de ying yong
zhou zuo ; xu wei
..............page:510
mei hua gong fei shui chu li ji shu yan jiu ji ying yong fen xi
you jian jun ; xiong shan ; he qian feng
..............page:370,365
lun gao zhi sheng he xin neng li pei yang
tian xin jing ; wang jun jie
..............page:283-284
shu zi miao biao de she ji
qu yang
..............page:206-207
ru he you xiao yu fang gong zuo mian wa si ji ju
su shi liang
..............page:380-381
qian yi lv se shi gong
zhang yan
..............page:118-119
gao zhong ying yu ke tang jiao xue de chang shi
chen wen zuo
..............page:353
na mi tan suan gai lv suan zuo shi fa biao mian gai xing ji shu de yan jiu
yang tie jian ; wu hong quan
..............page:50,52
wen zhou wen hua chan ye fa zhan ce lue yan jiu
zhu qian
..............page:249-250
cad xia shi xian mei tian chu liang zi dong ji suan
wang jian hua ; yang jing guo ; zhang qi ; sun xiu bo ; liu mao hua
..............page:382-383
ji yu hun zuo jia mi de dct yu shu zi shui yin suan fa
yu qiu ju
..............page:208-209
huang he yu bei qu chui liu de fan zhi geng xin yu zong he xiao yi fen xi
liu wei hua ; zhang feng ; xu yan fei
..............page:18
xuan bi liang zai mei kuang sheng chan zhong de ying yong
jiao feng ; liu bin ; chen shao hua
..............page:424-425
qi ye xin xi hua ji cheng ping tai jian she de yan jiu
geng yu ju
..............page:207
qian tan qiang jian fan zui zhong lun jian qing jie de ren ding
wang ming jiang ; xu yi xin
..............page:97
shu xing lian yin ke ru wei
ji chang man
..............page:356
xian jiao xiang liang guan jian gong xu shi gong zhi liang kong zhi yan jiu
zheng ren xiang ; mei guo peng
..............page:397
guang dong ke ji zi xun zhuan jia ku zi yuan de ying yong zhuang kuang he ti sheng wan shan de tan tao ji jian yi
zhuang si cong ; xiang xiao min ; huang ke xing ; sha zuo ; chen zhi cong
..............page:142-144
bao mei ceng zong cai gong zuo mian zhou wei xiang dao bian xing te zheng fen xi
ding tong jun ; yin shan dong
..............page:438-439
qian tan nian pu zai shi ge jiao xue shang de yun yong
shang hong tao
..............page:364-365
huang ni guan jiang fang mie huo gong yi gai zao
meng ji hua ; zuo xi liang
..............page:508
ji yu ansys de chou you ji jian su qi xiang ti you xian yuan fen xi
yan feng lin ; lu ying na ; zhu jin tong
..............page:161
lei gong teng jia su kang xiong xing sheng yu zuo yong yan jiu jin zhan
mo yu jie ; zhu jian hua
..............page:503,506
ke tang jiao xue zhong he zuo xue xi jiao xue fa de gou jian
gao feng ; wang you jun
..............page:2
guan yu li gong ke xue sheng shu xue jiao xue xiao guo de diao cha fen xi
wang hui yong ; tang shi jie
..............page:63-64
qian tan chu zhong hua xue jiao xue zhong de su zhi jiao yu
wang xue mei
..............page:359-360
he ci gong zhen cheng xiang ji shu jian jie
kang rui
..............page:477
guan yu shi nei fen bu xi tong wu xian xin hao jian ce de jie jue fang an
zhang zhan feng ; wang shi shi ; wang ruo guang
..............page:309-310
luo xuan mian jia gong dao ju de cad sheng cheng fang fa yan jiu
huang zuo ; wang dong mei
..............page:262
zhuan yu de yu yong ke ji xing fen xi
cao feng ling
..............page:244-245
ji yu zigbee ji shu de zhi neng an fang xi tong
wang fu peng ; huang fu jun jie ; yu xiao min ; zhao ying wen
..............page:13
bu tong xian shi pu tao pin zhong sheng li te xing bi jiao yan jiu
deng zuo lin ; tao zhen shui ; li hong guang
..............page:459
nie jing yu jing de qi fa
li xu dong
..............page:238
xian xing dai shu jiao xue fang fa de tan tao
wu cui fang ; ma li
..............page:155
ji dian she bei de guan li yu wei hu
du qiang
..............page:138
xin xi zai bei de shi shi ji zhong yao xing
guo zuo ; li kuo
..............page:313,315
ban bo sun shi he fu jia guang cheng cha
ding san hong ; zhu zeng hui
..............page:186
ccheng xu she ji xun huan jie gou jiao xue fang fa yan jiu
yi xiao mei ; yin jian xin ; liu li juan ; xia qi biao
..............page:25
ju bu zhan zheng zhong kong xi shi jian wen ti yan xi
zhang lei ; zhang xiang zuo
..............page:86
zhu xi kou shui dian chang sun huai shen ya ji de xiu fu
li jiang bo
..............page:426-427
shi yong photoshop jie jue ren wu kou tu zhong de nan ti
li zhong
..............page:314-315