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- Seat bores and minimum flows are crucial in check valve selection. Without proper sizing, extreme damage can occur in check valve internals. Pulsed flow reversals can also cause damage. 阀座孔和最小流量对于止回阀的选型至关重要。没有适当的通径,可能会造成止回阀内部严重损坏。脉冲式倒流也可能导致损坏。
- Abstract： in this paper, the input impedance of a pulsative flow through a vessel with mild stenosis amplitude radically was investigated. 摘 要： 本文研究局部缓慢狭窄幅度径向振荡血管内血液脉动流的输入阻抗。
- Design and Application of Calibrator of Pulsed Flow Transducer 脉冲型流量传感器检定仪的设计和应用
- With its help, the pressure pulsations of the three typical flow regimes existing in the bed which are trickling flow,transition flow and pulsing flow were measured. 利用这一手段，对滴流床中存在的三种典型流型：滴流，过渡流和脉冲流进行了压力脉动测量，并报道了压力脉动数据的直方图分析和谱密度分析。
- This text simply describes the physical model of electromagnetic environment and PDW simulation model of pulse flow, and presents the frame of simulation software for electromagnetic environment. 本文通过对电磁环境进行分析，简单描述了它的物理模型和脉冲流的PDW仿真模型，给出实现电磁环境仿真软件框架。
- The transmitter was pulsed by an electron tube. 电子管使发射器产生脉冲波。
- A free flow of water came from the pipe. 水从管道里通畅地流了出来。
- In convection, hot currents flow upwards. 在对流中热气流向上运动。
- After several pumps, the water began to flow. 用泵抽了几下之后,水流出来了。
- A flow of word is no proof of wisdom. 口若悬河，未必明智。
- Several conclusions flow from this hypothesis. 从这项假设中可以得出几个结论。
- Many benefits will flow from this discovery. 这项发现将带来许多好处。
- Pul is a short form for pulmonary. 应该是肺部气体栓塞吧!
- Turn the cock to increase the flow of water. 请开大龙头以增加水流量。
- Anomalous Pul mo nary Venous Drainage=? +肺静脉畸形引流=？
- Office politics just seem to flow over him. 同事之间互相倾轧、 勾心斗角的事似乎并未波及到他。
- The business has a cash flow of￡50000 a month. 这家商行的现金流转为每月五万英镑。
- The echoes had pulsed themselves to silence. 回声阵阵震荡，直到沉静下来。
- The effect of induced liquid pulsed flow on the performance of trickle-bed reactors 周期性脉冲流体对滴流床反应器性能的影响
- The sky overhead throbbed and pulsed with light. 天色瞬息万变。
