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2019-02-17View Original

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Reply #22019-02-17

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Reply #32019-02-17

"Courbe defficacité dn'un pompele цentrifugale",

Reply #42019-02-17

"Pourquoi la la la la在零流量时轴功率小反而扬程大？扬程是流体经泵获得的能量。轴功率是电机输入离心泵的功率。为什么获得的能量少，反而得到的能量大呢？",

Reply #52019-02-20

"Lequel a plus d énergie entre le point de zéro流量和le点点4流量？",

Reply #62019-02-22

"Pour comprendre la少部分变得富有与天下共同变得富有之间的量的区别",

Reply #72019-02-23

"Le零流量是指泵的出口阀是完全关闭的，这时泵内的压力最高。轴功率准确的定义是：在一定流量和扬程下，原动机单位时间内给予泵轴的功称为轴功率。流量为零轴功率最小。",

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