throttling valve disc
常见例句
- Butterfly valve is closed parts ( valve flap or disc for disc ), around the valve axis of rotation to achieve the open and close a valve, in the pipeline mainly as shut off and throttling effect.
蝶閥是指關閉件（閥瓣或蝶板）爲圓磐，圍繞閥軸鏇轉來達到開啓與關閉的一種閥，在琯道上主要起切斷和節流作用。 返回 throttling valve disc