Borehole hydromining is a kind of safe and efficient new mining method .
钻孔水力采煤是一种既安全、又能极大地提高资源利用率
新采矿方法。
Borehole hydromining is a kind of safe and efficient new mining method .
钻孔水力采煤是一种既安全、又能极大地提高资源利用率新采矿方法。
The acoustoelectric effect of rock is investigated with experimental method in model borehole.
在模型井中对
声电效应进行了实验研究。
It's a mean of geotechnical investigation, including borehole surveying, costeaning, trenching exploration, test pitting, hole exploration, geophysical exploration and penetration sounding.
土工程勘察一种手段，包
钻探、井探、槽探、坑探、洞探以及物探、触探等。
It is found that the rational located destressing boreholes can induce structural failure of the surrounding rock-mass,consequently the high stress move deeply in the rock-mass,and the stres...
在卸压孔和锚
支护后改善了围附近应力环境,改变了围破坏时空次序,对控制围变形和破坏具有突出优越性.
声明：以上例句、词性分类均由互
资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件
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