down-well efficiency 井筒效率
well flow efficiency 油井流动效率
Barometric efficiency of well 井水呼吸效率
well irrigation efficiency 井灌效率
The control scheme of maximum COP value of electrical refrigerator is presented, making the refrigeration system operation in the well efficiency.
针对制冷过程的特点,提出了电冰箱控制系统的最大能效比控制方法,使制冷系统工作在最佳状态。
The paper gives brief calculation and analysis for the artificial well efficiency, which aims at the optimization design for pumping unit and for reference.
文章仅对抽油机井系统效率进行简单分析与计算,旨在为优化设计抽油机运行参数提供参考。
A well-organized desk could greatly improve your learning efficiency because it would be more easy to get what you need.
一张井井有条的书桌可以极大地提高你的学习效率,因为这样你就能更容易地拿到需要的东西。
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