... We'll both forget the breeze » 我们就这两个忘记的风 pumps and pipes » 水泵和管道 Eastern Kindergarten,Ji Lin » 东方幼儿园，吉林 ...
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水泵和管道在设计上是应该充满水的。
水泵和管道在设计上是应该充满水的。弗里德兰德先生说，但是它们发生了泄漏，变成了水气混合的状况。
The pump and piping are designed to be kept full of water. But they tend to leak and develop alternating pockets of air and water, Mr. Friedlander said.
根据管道水力特性曲线与水泵的性能曲线，运用理论分析的方法，对影响末端定压差控制方式的因素和该控制方案的利弊进行了分析。
Factors affecting constant pressure difference control method and advantages and disadvantages of the control plan are analyzed theoretically through pipe system head curve and pump performance curve.
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