The pressure in a perfect gas, being directly proportional to the kinetic energy of the molecules, has a lower bound of zero.

理想气体的压力与分子的动能成正比，它的下限为零。

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Based on these results, a kinetic model for diamond nucleation in MPCVD system was proposed. The critical gas pressure corresponding to the highest nucleation density was also discussed.

在此基础上，提出一种MPCVD系统中金刚石成核的动力学模型，并指出对应于最高成核密度有一临界压强存在。

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The volute of guide-vane structure can transform the kinetic energy to pressure energy as soon as possible, and improve the capacity of separating gas and liquid for the more balance flow in it.

压水室采用导叶式结构能够尽快地把液体的动能转换为压力能，同时能够使泵腔内的流动更趋合理均匀，提高泵内气液分离的能力，并且能平衡叶轮径向力。

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