barge derrick

常见例句

The jacket, topside and yoke assembly were separately lifted and installed by using a derrick barge.
导管架、上部结构和软刚臂分别是用浮吊吊装的。
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.
我在墨西哥湾的一个海面油田做职业潜水员，一次被指派到一艘吊杆起重驳船上工作。
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.
针对超浅吃水大型起重船的这一特性，计算研究其在常见海况下各自由度水动力系数。