工况模拟中天然气的热物理性质参数是首先需要求得的参数。
In simulation, the parameters firstly to be calculated are those of natural gas thermal physical property.
借助于工控机对系统压力和方向进行远距离程控调节，从而实现试验检测所需的实际载荷工况模拟。
With the help of industrial control computer in the remote adjustment of system pressure and direction, the system can realize simulation of actual load condition needed in the test.
最后对在多种工况模拟的基础上，提出了一套能在现场应用的基于神经网络模型的隧道通风控制方法，并应用于实际的隧道通风工程中。
Finally, through simulating many ventilation conditions, a new tunnel ventilation control method based on neural network model is developed, which can be used in the field tunnel ventilation project.
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