The effect of the blasting of production on main transported adit was analyzed at Nanfen Iron Open-pit Mine.
分析了南芬露天铁矿生产爆破对主运输平硐的影响。
The seepage cause in the adit and shaft of the third-stage pumping station of the general main line in YRDP is analyzed.
文中针对万家寨引黄工程输水隧洞及泵站平洞竖井存在的渗漏原因进行分析研究。
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