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- carbonizing pump barrel 渗碳泵筒
- It is the key study how to make sure the pressure distribution of liquid in the pump barrel and to study the pump valve-ball's movement to improve the systematic efficiency. 对有杆抽油泵泵阀运动规律的研究和确定抽油泵泵阀筒内液体压力的分布是提高抽油机井系统效率研究的关键性课题。
- liquid instantaneous pressure in the pump barrel 泵筒内瞬时压力
- Boronizing of inside surface of subsurface pump barrel 抽油泵泵筒内表面渗硼组织与性能研究
- The mechanical analysis on axial bending of pump barrel 有杆泵泵筒的纵向弯曲机理分析
- Development and application of whet-slate used for machining pump barrel 抽油泵泵筒加工用珩磨砂条的研制与应用
- Study on the variation regularity of fluid pressure in a pump barrel 抽油杆泵筒内流体压力变化规律
- Anti-sand rod pump with helically-grooved barrel. 泵筒带螺旋槽的新型防砂卡抽油泵。
- I make a carbon copy of my documents. 我用复写纸复写文件。
- Soft drinks contain carbon dioxide. 软饮料中含有二氧化碳。
- I have some carbon paper somewhere or other. 我记得我在什么地方放有复写纸。
- A tyre expands when you pump air into it. 轮胎一打气就鼓起来。
- She's a carbon copy of her sister. 她跟她姐姐一模一样。
- Lashing velocity of pump is concerned with nature of air. 泵的抽气速率与气体的性质有关。
- This tire is flat; you didn't pump enough air in. 这个轮胎没气了;你并没打足气。
- We have a pump for drawing water from the well. 我们用一个水泵从井里抽水。
- A copy made by using carbon paper. 复写本，副本用复写纸复印的一份
- The heart is analogous to a pump. 心脏和水泵有相似之处。
- Can you lend me your bicycle pump? 能把你的打气筒借给我吗？
- Plants can absorb carbon dioxide and release oxygen. 植物可以吸收二氧化碳释放氧气。
