英德
有道
百度
谷歌
图片
维基
百科
旋转钻探
rotary boring
- 随后，石油公司采用了旋转钻探。 钻头会钻入地表，钻出一个更深的洞。
Then, companies turned to rotary drilling, where drills would churn down to the earth, making a deeper hole. - 操作空气运作轨道，旋转，向下钻孔机或其他钻探机钻爆破洞或直接钻爆破洞。
May operate air-track, rotary, down-the-hole or other drilling machines to drill blast holes or may direct drilling of blast holes. - 旋转钻进是岩上工程钻探的主要钻进方式，从能量守恒原理出发，对旋转钻进的能量进行分析。
Rotary drilling is a dominant way in geotechnical engineering borehole surveying. Based on the principle of conversation of energy, the energy for rotary drilling has been analyzed.
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