Mitigating destructive longwall bumps through conventional gate entry design /
- 出版日期：1990.
- 出版者：U.S. Dept. of the Interior, Bureau of Mines,
- 页数：38 p. :
- 出版地：Washington, D.C. :
- 第一责任说明：by A. A. Campoli ... [et al.].
- 尺寸：28 cm.
- 分类号：a720
MARC全文
02h0059026 20141022111534.0 s1990 dcuab fr |000|||eng | CNY200.00 NGL a720 Campoli, A. A. Mitigating destructive longwall bumps through conventional gate entry design / by A. A. Campoli ... [et al.]. Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1990. 38 p. : ill., maps ; 28 cm. Report of investigations (United States. Bureau of Mines) ; 9325 Mine roof control. ; Rock bursts. ; Longwall mining. Report of investigations (United States. Bureau of Mines) ; 9325. aCN bNGL 010001 P 720.66 R29u v9325 ; rCNY200.00 ; h1 yao012