基本解釋[能源科學技術]大井眼鉆井英漢例句雙語例句Dealt with engineering examples, this paper discusses some features of air-lift reverse-circulation large hole drilling and existing main problems.結合工程實例，對大口徑氣舉反循環(huán)鉆進特點及存在主要問題，進行了探討；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題，歷來是廣西基礎施工中的一大難題。large-hole drilling更多例句詞組短語短語Large diameter long -hole drilling 大直徑深孔鑿巖large-hole drilling更多詞組專業(yè)釋義能源科學技術大井眼鉆井