If the electron flow takes place in a vacuum, as in the case of electronic valve, the electrons will travel at considerable speed, since little resistance is offered the medium.
如果电子在真空里流动，比如电子真空管，那么电子的运行速度非常快，因为介质对电子几乎不产生什么阻力。
In the process conditions permit, the change in pump flow, head, speed and medium operating temperature operating parameters, to avoid the occurrence of cavitation.
在工艺条件允许的情况下，改变泵的流量、扬程、转速及介质的操作温度等操作参数，可以避免汽蚀的发生。
Under this situation, we must reduce the speed of pump, increase the power of the motor, increase the import and export of pipe diameter to reduce the flow resistance of the medium.
在这种状况下，必须降低泵的转速，加大电机的功率，加大进出口的管径来减少介质的流动阻力。
The result indicates that the sound speed of gas liquid two phase flow is much lower than single phase liquid or air medium.
结果表明：气液二相流音速比单相液体或空气介质低得多，流动机构对音速变化有显著影响。
If the high viscosity pump medium viscosity is too high, and with the rotation speed is too high, will cause the pump flow rate is very low, the noise of the pump is very large.
如果高粘度泵输送的介质粘度过高，而所配的转速也过高的话，就会造成泵的流量很低、泵的噪音很大。
The second coal plant three, four series transformation of Angang used in the medium-speed mill plus a bag short-flow milling and direct injection technology.
鞍钢二煤粉三、四系列改造采用了中速磨加一级布袋短流程制粉和直接喷吹工艺技术。
Introduced the test system of ZQM 41 model test medium speed coal grinder which based on the geometry and flow similarity principle.
介绍了根据几何和流动相似原理建立起的ZQM 41型试验中速磨煤机的试验系统。
Introduced the test system of ZQM 41 model test medium speed coal grinder which based on the geometry and flow similarity principle.
介绍了根据几何和流动相似原理建立起的ZQM 41型试验中速磨煤机的试验系统。
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