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- By using elastic stability theory and in combination with field work,a method in calculating space when installing sucker rod lifter is worked out and an example is provided. 运用纵横弯曲梁及弹性稳定理论,结合工程实际,分析得出了在全井各种井段合理安装抽油杆柱扶正器间距的计算方法,并给出了计算实例。
- The sequin device style have high speed connecting rod convave bearing style,straight rall style,motor raise style,block style,and connecting rod lift style. 其中金片绣装置有高速滑杆凹面轴承式、直线导轨式、电机提升式、滑块式、连杆升降式、五大类。
- The Design of the Installation of Sucker Rod Lifter and Its Application 考虑井斜因素的全井抽油杆扶正器安装位置设计及应用
- I bought a new fishing rod last Sunday. 上星期日我新买了一个鱼竿。
- It's quite an effort to lift this heavy box. 抬起这只沉重的箱子要花费相当大的力气。
- She (was) whisked up to the top floor in the lift. 她乘电梯迅速到达顶层。
- We need a hoist to lift the concrete blocks. 我们需要一台起重机来吊起混凝土块。
- The luggage was shunted slowly into the lift. 已把行李慢慢移进电梯里。
- The movable target on a leveling rod. 视准器水准尺上可移动的目标
- The rod bent as he pulled in the fish. 当他把鱼拉上来时,鱼竿都弯了。
- Hop in, I'll give you a lift to the station. 上车吧,我开车送你去车站。
- Spare the rod and spoil the child. 不打不成器。
- He pressed the button to call the lift. 他按键招呼电梯。
- He was too weak even to lift his hand. 他虚弱得连手都抬不起来。
- Can I hitch a lift with you as far as the station? 我可以搭乘你的便车到车站吗?
- A unit of area equal to a square rod. 平方杆等于一平方杆的面积单位
- The hydraulic lift is over there. 液压升降机在那儿。
- The lift has a capacity of 15 persons. 这部电梯的载容量为15 人。
- Don't all try to squash into the lift together. 不要统统挤进电梯里去。
- A rod or lever transmitting motion in a machine. 连杆机器中传递运动的连杆或杠杆