The same force tends to reduce the seal on the pressure side with the result that bonnet cavity and the valve stem packing are nearly always subjected to maximum pipeline pressure.
而压力侧以相同的力削弱了密封,这样使阀盖腔室和阀杆填料几乎总是承受最大管道压力。
The asymmetry encourages speculating on the short side, which in turn exerts a downward pressure on the underlying bonds.
这种不对称助长了对卖空的投机,反过来对基础债券施以下行压力。
At equilibrium, the partial pressure of a here has to be the same as the pressure on this side here.
在平衡时,这边A的分压,等于这边的压强。
You've got to put more pressure on one side than the other if you want to push that gas through the throttle, right? So this is where the time scale issue comes into play.
如果你想让更多的气体通过节流阀,应该使一边的压强,大于另一边,是吗?所以这就是,时间尺度发挥作用的地方。
Or in many kinds of gas refrigerators where you push a gas through a nozzle close to room temperature, what you find is that the gas coming out on the other side under lower pressure is cooler than the gas that went through on the other side.
或者在很多种压缩气体式冰箱中,你让气体通过接近室温的管口,你会发现从压力低的一边,出来的气体比通过,另一边的气体更冷,真正的冰箱实际上通过。
Then you put two pistons, one on that side here and one on this side here, and the external pressure here, we're going to call that p1.
接下来我们放进两个活塞,一个在这,一个在这,这变外界的压强为p1;
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