常見例句雙語例句At the same time, take a short trip valve flap design.同時(shí)，采取短行程閥瓣的設(shè)計(jì)。Valve flap can all be made of metal can also be embedded in the metal on leather, rubber, or synthetic coverage, depending on the use of performance requirements.閥瓣可以全部用金屬制成，也可以在金屬上鑲嵌皮革、橡膠、或者采用合成覆蓋面，這取決于使用性能的要求。Meanwhile, the flap valve can be used to adjust weight, spring tension and the bottom outlet valve flap valve opening size to determine the pressure and open and close time.同時(shí)，可以利用調(diào)整閥瓣的自重、彈簧的彈力以及閥瓣的底孔大小來確定閥門的開啟壓力和啟閉時(shí)間。權(quán)威例句These valves use a screw type valve instead of a simple flap, and they have a pressure regulating mechanism that will vent water to the ground if the intake pressure exceeds a set level.FORBES: What Do All The Controls On A Fire Engine Truck Do? 返回 valve flap