A variable air volume air - handling system is used to address the fluctuating room temperature 可变风量送风系统,切合不同室温要求。
2.
Ventilation for buildings - air terminal units - aerodynamic testing and rating of constant and variable rate terminal units 建筑物的通风.空调终端设备.恒定的以及可变风量的终端设备的空气动力试验和评定