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Machinery
1006-0316
1979 Issue 10
bang liao de su xing jian qie
qiu zhong yi ; sun bao ;
..............page:17-24+76
ru he gui ding ping heng ji shu tiao jian
wang zu sheng ;
..............page:41-44
wo chang gan zao lu de bi duan he gai zao fang an
xiao quan ;
..............page:70-72
yq3150 qing xing gun chi ji jian jie
he tian yuan ;
..............page:73