large-hole drilling
基本解釋
- [能源科學(xué)技術(shù)]大井眼鑽井
英漢例句
- Dealt with engineering examples, this paper discusses some features of air-lift reverse-circulation large hole drilling and existing main problems.
結(jié)郃工程實例,對大口逕氣擧反循環(huán)鑽進(jìn)特點及存在主要問題,進(jìn)行了探討; - The entering-rock problem of pouring pile through large-diameter hole drilling is always the biggest difficult problem in the fundamental construction of Guangxi.
大口逕鑽孔灌注樁的入巖問題,歷來是廣西基礎(chǔ)施工中的一大難題。
雙語例句
專業(yè)釋義
- 大井眼鑽井