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to phrases
directed drilling
eng.geol.
定向钻进
expl.
定向钻进
利用钻孔自然弯曲规律或用人工造斜工具,使钻孔在不同的孔段,能按设计的方位和倾角延伸的钻进技术定向钻进,这是一种更精确地向目标方位钻进的技术
oil
定向钻井
directed drilling:
2 phrases
in 2 subjects
Drilling
1
Technology
1
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