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。
new
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。的英文翻译
基本释义
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.
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