closing speed

基本解釋

Speed Control Valves are available for controlling valve opening or closing speed with pneumatic actuators.
速度控制閥可以用來控制閥門氣動執(zhí)行器的開啓或關閉速度。
Industrial Swing Check models can be fitted with an optional counter balance device to further control closing speed.
工業(yè)鏇啓式止廻閥系列可以配置反平衡裝置來進一步控制關閉速度。
The higher the closing speed of two aircraft heading towards each other, the bigger the PAZ required, because the pilot needs more time to react to a warning.
兩架相曏飛行的飛機速度越高，所要求的“保護空域”越大，因爲飛行員需要更多的時間對預警做出反應。

Now, at the closing speed, the headlights on, I would've had a hard time telling the color of the vehicle, let alone the driver.
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