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- hoisting on drill derrick 钻井架提升
- He is not working on drill floor, He is working in engine house. 他现在不在钻台工作,他在机房工作。
- Never hoist on uneven ground with the mast tilted away from vertical position. 不要在不平地面上桅架倾斜的状态下举重。
- Check power tongs and spinning rope are on drill floor. 检查动力钳和尾绳是否在钻。
- The International Olympic Committee (IOC) is hoist on its own petard. 国际奥委会是多么作茧自缚。
- Saltwater mud is known to have a very strong corroding effect on drill string. 人们知道,盐水泥浆对钻具有很强的腐蚀作用。
- Adopts fuzzy design optimizationmethod for the sample of traction mechanism in tower hoist on the basis of fuzzy maths. 针对塔式起重机变幅机构的设计实例,在模糊数学的基础上采用模糊优化设计方法求解。
- A flag was hoisted on top of the building. 大楼顶上升起一面旗帜。
- Analysis of friction on drill string in horizontal drilling. 水平井管柱下入摩阻分析及应用。
- Drilling derrick that working many years often has the defect of bending bar. 服役多年的钻机井架常会出现局部杆件弯曲现象。
- ZZM-A drill grinder simple structure, easy operation. One setup to complete grindings on drill web and chisel edge. 型钻头磨刀机结构简单,使用方便,一次装夹就可以完成钻头的钻尖和横刃的修磨。
- Disc brake system on drilling rigs. 石油钻机盘式刹车制动系统。
- The air-raid alarm went on drilling away from the gate. 从大门不停地传来刺耳的空袭警报。
- Students also hoisted on the roof the mosque's emblems and flags. 并在清真寺的楼顶升起了标志该寺的旗帜。
- ZQ203/100 drill power tong is a new type of mechanize tool on drilling floor. ZQ203/100钻杆动力钳广泛用于石油钻井的起下钻杆作业。
- A dismantling and assembling machine for four-leg drill derricks and a mechanically assembleddrill derrick have been developed, which are thought to the trend of the geologic drill derrick. 指出了目前钻塔拆装存在的缺点,提出了解决的新途径,研制成功了四腿钻塔拆装机及机装可逆式四腿管子钻塔,认为这是地质钻塔发展的新方向。
- Do concentrate all your efforts on drilling work, please! 请你一定要把全部精力集中在钻井工作上。
- This paper adopts fuzzy design optimizationmethod for the sample of lift mechanism in tower hoist on the basis of fuzzy maths. 针对塔式起重机起升机构的设计实例,在模糊数学的基本理论基础上采用模糊优化设计方法求解。
- Calculation of wear life of driving chain on drilling rigs. 石油钻机传动链条磨损寿命的计算
- This paper adopts fuzzy design optimization method for the sample of lift mechanism in tower hoist on the basis of fuzzy maths. 针对塔式起重机起升机构的设计实例,在模糊数学的基本理论基础上采用模糊优化设计方法求解。