For simple gas hydrate formation, the temperature and pressure of methane hydrate is highest, butane is lowest, and ethane and propane is between them.
对于纯气体形成水合物，甲烷形成的温压条件最高，丁烷最低，乙烷和丙烷介于二者之间。
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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