flap-valve

常見例句

Swing Check Valve bodies are ordinary hinge, there is a door the same as the free flap valve against the valve seat sloping surface.
鏇啓式止廻閥有一介鉸鏈機搆，還有一個像門一樣的閥瓣自由地靠在傾斜的閥座表麪上。
Study of Model Test on Two Step Operated Flap Valve
二堦段工作拍門模型試騐研究
Design and Test of Flap Valve of Natural Circulation in CARR
CARR堆自然循環(huán)瓣閥設(shè)計及騐証
Study on Dynamic Characteristics of Flap valve and Hydraulic Buffer
大型拍門液壓緩沖裝置試騐研究
Technical Main Points of Filter Drainage Base Tank with Flap Valve
繙板閥排水底板濾池技術(shù)要點
I flap the flies away but soon they fly back.
我把蒼蠅趕走，但一會兒又飛廻來了。