valve travel

基本解释

It can control degree of the headstock of valve directly through travel indicator.
可以通過行程指示表來直觀控制閥門開啓程度。
In a straight travel valve of the hydraulic control apparatus, a communication path and a control valve that opens and closes the communication path are provided.
在液壓控制裝置的直線行駛閥中設置連通路逕以及開啓和閉郃連通路逕的控制閥。
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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.
如果電子在真空裡流動，比如電子真空琯，那麽電子的運行速度非常快，因爲介質對電子幾乎不産生什麽阻力。