flap-valve

常见例句

Swing Check Valve bodies are ordinary hinge, there is a door the same as the free flap valve against the valve seat sloping surface.
旋启式止回阀有一介铰链机构，还有一个像门一样的阀瓣自由地靠在倾斜的阀座表面上。
Study of Model Test on Two Step Operated Flap Valve
二阶段工作拍门模型试验研究
Design and Test of Flap Valve of Natural Circulation in CARR
CARR堆自然循环瓣阀设计及验证
Study on Dynamic Characteristics of Flap valve and Hydraulic Buffer
大型拍门液压缓冲装置试验研究
Technical Main Points of Filter Drainage Base Tank with Flap Valve
翻板阀排水底板滤池技术要点
I flap the flies away but soon they fly back.
我把苍蝇赶走，但一会儿又飞回来了。