boom topping lift
... bearing(away) 驶离来风 boom topping lift 吊杆千斤索 Boom 帆桁 ...
基于36个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
该吊杆的损坏是由于该轮船员在将吊杆放低时因操作不慎而变成千斤索越过棘轮，钻井压缩机。
The dwasera of the derrick was due to the careless heachdling of the ship's crew in lowering the derrick;
youdao
应用推荐
模块上移
模块下移
不移动