air shaft [建] [矿业] 通风井 ; [矿业] 通风竖井 ; 防风道
upcast air shaft 出风井
return air shaft 回风井
exhaust air shaft 排气竖井
extract air shaft 抽风竖井
AIR SHAFT SEAL 压缩空气旋转接头
Single air shaft 单轴收卷
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N a shaft for ventilation, esp in a mine or tunnel (矿井或隧道中的)通风井
His plans involve building an air shaft through the roof of the control center equipped with a solar powered fan to draw air deeper into the complex.
他计划在控制室的顶上装一套太阳能驱动的换气系统，将空气泵到设施的深处。
This paper mainly presents the construction equipment complement for air shaft of Wuchiba tunnel.
本文主要介绍了乌池坝隧道通风竖井施工设备配套技术、竖井施工的提升、悬吊设备。
This paper introduces the features of air shaft noise, the condition of air shaft noise before reduction noise, the goal and requirement of reduction noise and main noise sources control.
介绍了风井噪声的特点、降噪前风井的噪声状况、降噪的目标和要求以及主要噪声源噪声控制。
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