离子阱区的压力是通过建立区域气体流动模型计算得到。
Pressure in the ion trap is evaluated by establishing gas flow model.
建立进排气阀模型以确定配气相位； 建立气缸内湍流燃烧、传热、气体流动模型；
The models of combustion, heat transfer and air-flow were established and the model of mechanical efficiency was established as there are frictions between engine parts.
除了残骸，这些冲击波模型对于了解一系列天体物理学现象，从新恒星上的气体流动到恒星物质的喷发，有很重要的帮助。
Besides supernova remnants, these shock models are important in understanding a wide range of astrophysical phenomena, ranging from winds in newly-formed stars to cataclysmic stellar outbursts.
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