extension drilling中文什么意思
扩边钻井
- extension: n. 1.伸长,伸展,延长,延伸,扩 ...
- drilling: adj. 尖锐的,辛辣的。 dril ...
- hull extension type drilling rig: 船体延伸型钻油船
例句与用法
- Automatic extension drill
手摇骨钻 - The extension drill rod which can be used for higher capacity drill , the drill hole can be extended to sezeral meetrs , when drilling the straight hole , the core lifter can help coring
选用加长钻杆于较大能力的钻机,可将钻孔延深至数米,钻垂直孔时,可采用取芯器配合取芯。