通风速度 meaning in English

ventilating speed

Critical ventilation speed between platform and concourse at subway station
地铁车站站台与站厅间临界通风速度的研究
By using fds software , the critical ventilation speed from platform to concourse was studied in the different conditions
利用fds场模拟软件，对不同条件下站台与站厅间所必需的临界通风速度进行了计算机模拟研究。
Based on the analysis of the variation law of smoke flow in subway platform fire , a concept about critical ventilation speed from platform to concourse was presented
在分析了地铁站台火灾时烟气流场变化规律的基础上，提出了临界通风速度的概念。
The results indicate that the critical ventilation speed is direct ratio to the heat release rate and reverse ratio to the height of the smoke barrier which lies in the stairs ' access between platform and concourse
研究表明：临界通风速度与火灾热释放速率成正比，与站台和站厅间楼梯口处的档烟垂壁高度成反比。