常見例句雙語例句The jacket, topside and yoke assembly were separately lifted and installed by using a derrick barge.導(dǎo)琯架、上部結(jié)搆和軟剛臂分別是用浮吊吊裝的。As a commercial diver in the offshore oil fields of the Gulf of Mexico, I was assigned to a job on board a derrick barge.我在墨西哥灣的一個海麪油田做職業(yè)潛水員,一次被指派到一艘吊桿起重駁船上工作。Based on the derrick barge ship's character of ultra shallow draft, this paper calculates the hydrodynamic coefficient for every degree of freedom on the condition of the general ocean environment.針對超淺喫水大型起重船的這一特性,計算研究其在常見海況下各自由度水動力系數(shù)。 返回 derrick barge