通过初步调试证明，液氮系统能够很好地解决大型空间环境模拟设备液氮系统启动困难的问题。
It has been proved by test that the problem of large space simulator liquid nitrogen system starting has been solved successfully in simulator liquid nitrogen system.
大型空间环境模拟器的液氮系统庞大复杂，为满足确定控制方案、建立故障诊断模型、技术改造等的需要，建立液氮系统的数学模型是十分必要的。
A mathematical model of liquid nitrogen system of a space environmental simulator is introduced and a quasi-stationary control method is developed in this paper.
在这些应用中，准确预测液氮的流动沸腾换热特性对于系统设计和安全运行十分重要。
In these applications, it is very crucial to predict the flow boiling heat transfer coefficient of liquid nitrogen for the system design and safe operation.
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