介绍了一种电子式双水位报警器的结构及工作原理，并对其有关参数的选定进行了设计计算。
This paper introduces the working principles of an electronic double-water level alarm and the designing calculation of its related parameter selection.
以实践为基础，对测量汽包水位中使用的双室平衡容器的工作原理与特性作了详细介绍。
On the basis of practicing, the operational principle and features of dual condensation chamber used for drum water level measurement are presented in detail.
中压、高压、超高压双色水位计、磁浮式液位计、管式液面计。
Medium pressure, high pressure, ultra-high pressure two-color water level gauge, magnetic level Meter, tube of liquid.
实际制作了双光路光纤F-P腔液位传感器，进行了实际气压模拟试验和实际水位测量试验，取得成功有价值的结果；
Fourthly, the F-P liquid level sensor was fabricated, the practical measurements were carried out both for the air pressure and the water level.
在分析常用锅炉汽包水位控制方式存在问题的基础上提出了双输入—单输出汽包水位模糊控制系统。
On the basis of analysis of conventional drum water level control mode for boiler and existing problems, a dual inputs single output fuzzy water level control system is stated.
研究表明，对于水源水位大幅度变化的低扬程泵站，采用双速全调节轴流泵，具有运行方便、节能效果显著的特点。
It is showed that, the adjustable axial-flow pump with double speed is very convenient in use and obvious in energy saving wh...
研究表明，对于水源水位大幅度变化的低扬程泵站，采用双速全调节轴流泵，具有运行方便、节能效果显著的特点。
It is showed that, the adjustable axial-flow pump with double speed is very convenient in use and obvious in energy saving wh...
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