throttle valve / 油门、节流阀

throttle valve / 油门、节流阀throttle valve
[ˈθrɑtl] [vælv]
油门、节流阀

A throttle is the mechanism by which the flow of a fluid is managed by constriction or obstruction. An engine’s power can be increased or decreased by the restriction of inlet gases (i.e., by the use of a throttle), but usually decreased.