pumping level

The results show that there is a fixed threshold Xat for the relative pumping parameter Xa of the upper laser level;

结果表明：激光上能级相对泵浦参量Xa具有一个确定的阈值Xat；

Energy conversion, level, distribution and variation of depression cones during artesian and pumping processes are analyzed.

从抽水设备作功、消耗能量的角度,分析了自流和抽水过程中的能量转化 、 水位与压降漏斗的分布和变化规律.

The Method of Extracting the Liquid Level Value of a Pumping Well from the Echo Signal of Liquid Surface

环抽（一种抽签方法）从抽油井液位回音信号中提取液位值的方法

The principle and application of a new microcontroller-based pumping well liquid level auto-monitor are described.

介绍了一种基于单片机的新型抽油井液面自动监测仪的设计原理和实际应用.

Planning Scheme of the Water Pumping Irrigation District by Using the System Administrative Level Analysis and Theory

应用系统层次分析模糊选择提水灌区规划方案抽水蓄能电站运营模式探讨