真空膨胀

因为气体是向真空膨胀，因此这个过程不做功。

Well since the gas is expanding into vacuum no work is done .

当一个真实气体，向真空膨胀咱的时候温度会下降。

When you expand a real gas into vacuum , the temperature goes down .

本文讨论受压固、气两相介质向真空膨胀这一基本的非定常运动，用渐近法得到了早期和晚期自模拟解，在气体绝热指数为3的情形下用数值法得到了过渡期解。

The expansion of a pressurized gas-solid two phase medium to vacuum-an elementary phenomenon of explosion is discussed .

这个实验告诉你，气体在向真空膨胀的过程，中温度没有升高。

And so an experiment said the gas didn 't increase its temperature when it expanded the vacuum .

根据真空膨胀模型、均匀激波层理论以及牛顿薄激波层理论建立了一种气体向真空膨胀的简单分析模型，给出了近似解，并编制了计算机程序。

A simplified analytical model for gas expansion into vacuum is constructed in this paper . According to the model homogeneous-shock-layer theory and Newtonian thin-shock-layer theory , the approximate solutions are given and a computer code is programmed .

问题是这样的：，开始一边是体积V1的气体，一边是真空，气体膨胀到。

So the problem is going to be the usual problem of having a volume V1 of a gas on one side , and a vaccuum V2 expanding to volume V2 , gas .

真空羽流膨胀迅速。

The plume expand rapidly in vacuum .

根据这一定律，在热气体与冷气体的自发混合、气体向真空的自由膨胀以及燃料的燃烧之类的不可逆过程中，熵都是增加的。

The law states that entropy increases during irreversible processes such as spontaneous mixing of hot and cold gases , uncontrolled expansion of a gas into a vacuum , and combustion of fuel .

对真空制盐车间不锈钢膨胀节热影响区腐蚀裂纹的探讨

Study on Corrosion Cracking of Bellows Expansion Joint Made of Stainless Steel

真空计量中静态膨胀法的计算

The Calculation of Static Expansion Method in Vacuum Metrology