吸出式凿岩
Drilling Hole Design Improvement of Gas Suction of Cross-measure Cutting Coal
石门揭煤瓦斯抽放钻孔设计方法的改进
The development of mkd& 5 drilling rig for gas drainage under suction
MKD&5型大口径瓦斯抽放钻机的研制
The drilling fluid circulating tank includes a vibrating screen tank, a suction tank, a reserve tank or a mixing tank which are classified according to different functions.
钻井液循环罐组成,根据功能不同分为振动筛罐、吸入罐、储备罐、或混合罐。
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