Long life, is titanium and Monel valve valve 2-4 times.

使用寿命长，是钛合金阀和蒙乃尔阀的2 - 4倍。

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After the emergency shutdown valve valve through the user's program is better.

紧急关闭阀阀后直通用户的方案比较好。

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Reduce the external leakage of valve valve packing system is the key to the material.

减少阀门外泄漏的关键在于阀门填料系统的材质。

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But if you touch the valve going into your tire which basically measures the temperature of the air going into your tire, that is getting hot, right.

以至于浑身发热,如果你摸气筒的阀门,相当于近似测量了进入轮胎的气体的温度，它会很热，对吧。

麻省理工公开课 - 热力学与动力学课程节选

You take a throttle valve, which consists of some sort of porous plug between two cylinders that is insulated. There is insulation here.

有一个节流阀，它由一些多孔的塞子组成,这些多孔塞在两个绝热的汽缸之中,这里是绝热的，底下也是绝热的。

麻省理工公开课 - 热力学与动力学课程节选

Lastly, up here, is a picture of a much smaller device, this is actually an artificial heart valve that is made of plastics and metal and can replace the valve inside your heart.

最后,在上面这里,这张图片是一个相对较小的装置,这实际上是一个人工心脏瓣膜,由塑料和金属制成,可以取代人的心脏瓣膜

耶鲁公开课 - 生物医学工程探索课程节选

Once in the proper place the new valve can be deployed, pushing the older valve aside.

FORBES: Breakthrough Heart Valves: How Will Patients Decide?

In many cases, the aortic valve has to be replaced to correct aortic valve regurgitation.

CNN: Aortic valve regurgitation

Another type of tissue valve replacement that uses your own pulmonary valve (autograft) is sometimes possible.

CNN: Aortic valve regurgitation