The wind tunnels steady wind velocity control systems are composed of wind tunnel rev control system and wind tunnel velocity and pressure control system.
风洞稳风速控制系统主要由风洞稳转速控制系统和风洞稳速压控制系统构成。
The tests were carried out in a constant volume tunnel in which the flow velocity, the environmental density and its temperature can be changed.
试验在专门研制的可变流场速度、可变环境密度和可变环境温度的定容风洞中进行。
This paper indicates that tunnel airflow velocity defined in the existing code for the design of metro doesn't satisfy the requirement of tunnel ventilation in case of fires.
分析现行规范规定的数据，用临界风速公式进行计算得出区间隧道风速不满足通风要求。
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