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自由阀，自由阀
1、gas valve───[机]煤气阀；气体阀；充气管；充气管，煤气阀
2、valve───vt.装阀于；以活门调节；n.(Valve)人名；(俄、芬)瓦尔韦；n.阀；[解剖]瓣膜；真空管；活门
3、valve index───气门指数
4、citor valve───citor阀
5、mitral valve───n.[解剖]左房室瓣（二尖瓣）；[解剖]僧帽瓣；n.僧帽瓣，二尖瓣
6、stop valve───n.停止阀，闭塞阀; 主汽阀; 截门；截止阀
7、purge valve───放气阀
8、refilling valve───加注阀
9、engager valve───接合器阀
1、Discharge no memory, completely maintenance-free valve regulated sealed;───充放电无记忆，阀控密封式完全免维护；
2、The design incorporates a channel thin enough to become entirely devoid of carriers (ie, free electrons or holes) when switched off, thus acting as a valve, yet full of them when switched on.───这一设计包含了一条足够细的隧道，当它关闭时，里面完全没有载流子(电子或空穴)，当它打开时，里面便充满了载流子，起到了阀门的作用。
3、The Studies of Developments of Sealed Lead-acid Batteries Regulated by Maintenance of Free Valve Applied to Railway Locomotives───免维护阀控密封铅酸蓄电池在铁路机车上应用的开发研究
4、Joule free expansion involves opening this valve and asking what happens when this gas moves into the other bulb or distributes between the two.───焦耳自由膨胀就是,打开阀门后的过程,气体从一个腔跑到另一个腔,并在它们之间平均分配。
5、Electromotion Double-flow Seepage Free Valve Used on the Toilet───坐便器用电动双流量无渗漏阀
6、Open the purge valve until the water flows clear and free of bubbles.───打开排气阀，直到水流清澈没有气泡。
7、In all services, the tied-diaphragm valve is the most easily purged, particle-free valve design now in use.───在所有应用中，束缚隔膜阀是现在正在使用的最容易净化的无颗粒阀门设计。