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2019-02-09View Original

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[". 일일 문제 泵设备) 빈칸 문제:

Reply #22019-02-09

先上升到最高点后又出现下降/逐步增大

Reply #32019-02-09

这玩意咋说？一般中间高两边低的曲线流量越多轴功率越大的上升曲线

Reply #42019-02-09

先逐渐增加后逐渐降低，并在额定流量点达到最大，单调递增

Reply #52019-02-09

流量-效率曲线的变化是（抛物线——先上升后下埃及），轴功率随流量的增加而上升

Reply #62019-02-09

先逐渐增加后逐渐降低并在额定流量点达到最大，单调递增

Reply #72019-02-09

流量增大，效率提高流量增大，轴功率提高

Reply #82019-02-09

初始时流量为0效率为0，随着流量的增大，效率增大；到一定程度后，流量增大，效率降低；曲线似山形。离心泵的流量越大，轴功率越大；流量为0时，轴功率不为0，约为正常运转的60%.

Reply #92019-02-09

先逐渐增加后逐渐降低并在额定流量点达到最大，??单调递增

Reply #102019-02-09

先逐渐增加后逐渐降低并在额定流量点达到最大，单调递增

Reply #112019-02-09

先逐渐增加后逐渐降低并在额定流量点达到最大，??单调递增

Reply #122019-02-09

先逐渐增加后逐渐降低并在额定流量点达到最大，??单调递增

Reply #132019-02-09

效率随先流量的增加而增大，达到最大效率后随流量增加而减小；轴功率随流量的增大而增大。

Reply #142019-02-09

先逐渐增加后逐渐降低，非线性增大

Reply #152019-02-09

先逐渐增加后逐渐降低并在额定流量点达到最大；单调递增

Reply #162019-02-09

先逐渐增加后逐渐降低并在额定流量点达到最大，单调递增

Reply #172019-02-10

流量-效率曲线的变化是（成抛物线），流量-轴功率曲线变化为（成正比）

Reply #182019-02-10

1。先增加。后减少 2。轴功率是随着流量而增加的

Reply #192019-02-10

从最高点向两侧下降的变化趋势上升的变化趋势

Reply #202019-02-10

泡沫超版，为什么很多回复同我给定的答案完全一样，难道可以看到答案？

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