ventilated duct embankment 通风路基
duct-ventilated machine 风道通风电机
totally-enclosed duct-ventilated type 全闭管通风形
duct-ventilated type 风道通风式
duct system for ventilated silo 通风粮仓的通风管系统
auto-controlled duct-ventilated embankment 自控通风路基
ventilated duct
通风管
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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。
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