基本解釋井架底座英漢例句雙語例句Have you fixed the derrick substructure in position?井架底座固定好沒有?The tong counter-weights must not rest on derrick sub-floor, derrick substructure sills.不能讓大鉗平衡鉈靠到鑽臺下邊或井架底座上不起作用。blog.sina.com.cnThe degree of reliability of rig derrick and substructure in different time is obtained by means of reliability evaluation of the zero failure data.通過對石油鑽機井架、底座無故障數(shù)據(jù)的可靠性評定,求得了不同時間狀態(tài)下符郃實際的可靠度。derrick substructure更多例句詞組短語短語derrick k substructure 井架底座derrick and substructure 井架和底座k -derric and substructure 前開口形井架及其底座derrick substructure更多詞組專業(yè)釋義能源科學(xué)技術(shù)井架底座地球科學(xué)井架底座