derrick mast
基本解释
- 扒杆
- 吊货杆桅
英汉例句
- Do not throw objects off the floor, mast or derrick.
不允许从钻台上或井架上，往下乱扔东西。
blog.sina.com.cn - Tools carried into the derrick or mast should be secured to the body.
带到井架上的工具应当绑在身上。
blog.sina.com.cn - The frame of mast derrick that is designed for hydraulic wheel tractor hoist adopt welding of armor plate, its section is oblong armor plate, and its material is HG60.
为满足液压轮式通井机的使用要求而设计的桅杆式井架采用板焊结构， 主体截面为长方形的方形钢， 材料为HG60。
双语例句
词组短语
- derrick or mast 井架或便携式井架
- pole derrick derrick mast 起重扒杆
- derrick k mast 扒杆
- derrick kingpost lifting mast 起重桅杆
- man -riding derrick mast 乘人扒杆
短语
专业释义
- 扒杆