... combination digital logger数码式综合测井仪 closing valve time关阀时间 conteact anemometer接触式风速表 ...
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通过数值求解得出了阀关、开过程的动态曲线及动作时间等重要参数。
The dynamic curve and the important time parameters which describe the close-open process of valve have been given with the numerical calculation.
电磁阀通过线圈驱动，只能开或关，开关时动作时间短。
Driven through the solenoid valve coil, only on or off, the switch moves a short time.
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