The dual control mode is one of the three new mechanical ventilation modes.
双重控制模式是机械通气的三大新模式之一。
Thus we put forword to apply Push pull ventilation device to dust control welding roof.
因而提出了将吹吸式通风装置用于棚板焊接烟尘控制上。
Ventilation was managed well to control temperature in plastic greenhouse.
控制温度，做好大棚通风降温工作；
The ventilation of gas control.
对煤气的通气量进行控制。
These data will play a guiding role for ventilation and smoke control system.
这些数据将为通风排烟系统的设计起到指导作用。
These data will play a guiding role for ventilation and smoke control system.
这些数据将为通风排烟系统的设计起到指导作用。
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