实风，亦称正气 正风，记载文献：《灵枢·九宫八风》
对高速列车动力车冷却风室进风口处百叶窗空气流向、流速实车测量方法进行了研究。
The investigation is done to the measuring method of the persian blinds airflow direction and speed at the inlet of cooling wind chamber of high speed power car.
通风管采用镀锌钢板制作，风管与风井连接处缝隙应用不燃材料填实。
Ventilating tubes are made of galvanized steel plate, the gap between the joint of air tube and air well should be filled with incombustible materials.
风积沙的压实度达90%以上时，浸水所造成的密度改变很小。
The density changes very little after soaking when the compactness of aeolian sand is above 90%.
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