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- 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。
- Simple Method for Calculating Impulse Force by Flap Valve in Pumping Station 泵站拍门撞击力的简化计算方法及其应用
- A triangular fold or flap of a heart valve. 尖瓣心脏瓣膜的褶皱或瓣片之一
- A flap from the tail of the whale upset the boat. 鲸尾轻轻一拍便把小船打翻了。
- Have you turned off the water valve? 你关掉水阀了吗？
- I got into a real flap when I lost my keys. 我丢了钥匙，心里发慌。
- The (flap of the) envelope was unstuck. 信封(的封口)没粘住。
- We need an eye bolt to fit this valve. 我们需要一个有眼螺栓来固定这个阀门。
- He soon detected the faulty valve. 他很快查到了出毛病的阀门。
- A decorative flap or loose fold on a garment or headdress. 垂饰外套或头巾上的装饰性的下垂物或松散的褶层
- He doused the candle with a flap of his hand. 他用手煽熄烛火。
- Optimization for Design Scheme of Steel Flap Valve in Outlet Water Gate of Large Scale Pumping Station in Lake Area 湖区大型电排站出水闸钢拍门设计方案优化
- The pump sucks air out (of the vessel) through this valve. 这台泵通过这个阀门把(容器中的)空气抽出。
- STUDY ON DYNAMIC CHARACTERISTICS OF FLAP VALVE AND HYDRAULIC BUFFER ABOUT TWO DESIGN SCHEMS 两种拍门液压缓冲设计方案模型试验研究
- A flap in Congress over the defense budget. 由于国防预算引起的国会慌乱
