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定向钻进
bridg.constr. directional drilling
eng.geol. directed drilling; guided drilling
hydroel.st. oriented boring
tech. controlled drilling; controlled-angle drilling; prevention of deviation drilling
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
expl. directional drilling; directed drilling; controlled drilling
定向钻进
: 7 phrases in 3 subjects
General1
Oil / petroleum2
Technology4