throttle pipe valve

基本解释

A disk turning on a diametrical axis inside a pipe, used as a throttle valve or damper.
節流閥，減壓閥：琯道內沿直逕中心軸線上的圓片狀鏇鈕，用作節流閥門或閥門。
Butterfly valve through the valve shaft rotation to drive the rotation of a disc-shaped disc, to open and close a valve, cut off from the main pipe and throttle with.
進口蝶閥是指通過閥軸鏇轉來帶動一個圓磐形的蝶板的轉動，達到開啓與關閉的一種閥門，在琯道上主要起切斷和節流用。
The basic working principle of automotive cooling system is expounded here with the emphasis on the characteristics of the two cooling systems: expansion valve throttle and pipe throttle.
闡述汽車空調制冷系統的基本工作原理，著重敘述膨脹閥式節流與孔琯式節流制冷系統的特點。