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Coal Engineering
1671-0959
1959 Issue 12
zai dang de jiao dao xia bu duan qian jin
chen shu de ;
..............page:4-5
yi ci shen ke de gong chan zhu yi jiao yu
yu wen jiang ;
..............page:6
dang zhi xiang na li jiu ben xiang na li
cui yun lou ;
..............page:7-10
sheng dong de shi ji , ju da de gu wu !
zhu pei ying ; chang qi zuo ;
..............page:10
yan jiu she ji fa
..............page:21-24
guan yu gai jin shu jing jing tong zhuang bei de yi xie wen ti
. . ge lu luo fu ; xue cheng ;
..............page:42-43
jing tong bao wen de jia re she bei
. . ma lu fu lian ke ; zhu ming wei ;
..............page:44-46
lu tian kuang shu gan fang fa de xuan ze
lu shu zuo ;
..............page:49-52