State-of-Arts and Development of DTH Drilling Tools in China
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摘要:
概述了我国低风压和高风压潜孔钻具的生产与使用现状,及存在的问题,简介了国内潜孔钻具的发展趋势。
Abstract:
The state-of-arts of production and operation of low and high pneumatic DTH(down-the-hole) drilling tools and existing problems in China are briefly described. The trend of DTH drilling tools in China is presented also.
