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- 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。
- 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.Stability,static loads and fatigue life on a derrick are calculated in designing. 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。 对井架进行了稳定性、静强度和疲劳强度设计计算。
- Calculation and stress test on 720 kN mast derrick 720kN桅杆式井架的设计计算和应力测试
- The ginpole is the simplest form of derrick. 起重吊杆是一种最简单的起重机。
- The mast went by the board in the storm. 那船桅在暴风雨中落于船外。
- The tall man always wore his trousers at half mast. 那高个子老是穿着一条长不及踝的裤子。
- She tied on the flag and ran it up the mast. 她把旗子系上,顺杆升起。
- The mast was bent during the storm. 桅杆在风暴中变弯了。
- My nephew worked his passage to Sydney before the mast. 我的侄儿乘船去悉尼时在船上充当普通水手，打工以抵偿旅费。
- The boy is so untidy-he always has his socks hanging at half mast. 这男孩衣衫不整，袜子总是没有拉直。
- mast derrick 桅式吊车
- A pennant lolling from the mast. 信号旗松散地从桅杆上垂下来
- The shot struck the pirate ship bang on the mast. 炮弹正好击中海盗船的桅杆。
- Flags were flying on every mast. 旗帜在每根旗杆上飘扬。
- We put up at the surface an oil derrick. 我们就在那块地面上竖起一个井架。
- Could you give me a hand in adjusting the derrick? 你是否能帮我调整一下吊杆?
- Do you give me a hand in adjusting the derrick? 你看是否能把我们的安排通知领班?
- The part of a mast that is below deck. 桅脚，桅座位于甲板下的桅杆部分
- Derrick: That is what I understand. 这我清楚。
- Derrick: Your boyfriend left you for your friend? 德瑞克:妳男朋友为了妳的朋友离开妳?
