large-hole drilling

基本解釋

• [能源科學(xué)技術(shù)]大井眼鉆井

英漢例句

雙語(yǔ)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)合工程實(shí)例，對(duì)大口徑氣舉反循環(huán)鉆進(jìn)特點(diǎn)及存在主要問(wèn)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.
  大口徑鉆孔灌注樁的入巖問(wèn)題，歷來(lái)是廣西基礎(chǔ)施工中的一大難題。

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詞組短語(yǔ)

短語(yǔ)

• Large diameter long -hole drilling 大直徑深孔鑿巖

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專業(yè)釋義

能源科學(xué)技術(shù)

• 大井眼鉆井