Remove the screws, washers and nuts from the lock handles for the airinletduct.
从进气管道的锁手柄上拆下螺栓、垫圈和螺母。
2
When the sending and exhausting shaft is ventilated, short duct flow may occurred between outlet and inlet, which will baffle air exchange in highway tunnel.
在竖井送排式通风时，排风口和送风口之间可能产生短道流动，这种短道流动会阻碍隧道内的空气交换。
3
The damper configuration on inletairduct to coal mills in pressurized direct pulverizing coal systems is analyzed and the optimized design schemes are presented.