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Exploration Engineering(Drilling & Tunneling)
1000-3746
1965 Issue 7
san ceng zuan li zuan tou de gong zuo zhi biao
.b. ji min ;
..............page:41-43
zuo shi jia qian jie shao
zhao dian heng ;
..............page:32-33
pao mo pu chen
..............page:38-39
zuan jin shui ping shen kong
..............page:40-41
li yong fei zuan gan zuo gui dao
..............page:33