基本解釋[機(jī)械工程]起重拔桿立式起重機(jī)把桿起重機(jī)英漢例句雙語例句Do not leave pipe or collars that are not in use standing in mast or derrick.不許在井架上排放用不著的鉆桿和鉆鋌。blog.sina.com.cnstanding derrick更多例句詞組短語短語standing derrick incline hoisting 扒桿歪吊free standing derrick 輕便井架pyramid derrick standing 塔形井架安裝standing derrick更多詞組專業(yè)釋義機(jī)械工程起重拔桿立式起重機(jī)把桿起重機(jī)