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定向井 dìngxiàngjǐng
dril. directional hole; controlled directional well; deflected hole; deflected well; deviated borehole; deviated hole; oriented hole
eng.geol. direction well; slant well
oil directional well; orientation well
tech. controlled by directional well
定向井
: 100 phrase in 9 subjects
Drilling48
Ecology1
Explosives and Explosive Ordnance Disposal4
Geophysics9
Hydroelectric power stations1
Management1
Navigation1
Oil / petroleum22
Technology13