The unwinding equipment and rewinding equipment all adopt air-expansion shaft to bear roll materials, assuring fast replacement, even supporting force and accurate centering.
放卷、收卷均由气胀轴支撑料卷，更换快捷、撑力均匀、定心准确。
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。
A penthouse can be an apartment on the roof or top floor of a Building or a structure on the roof housing the top of an elevator shaft, air-conditioning equipment, or stairs leading to the roof.
阁楼可以是公寓屋顶部分，也可以是建筑物的顶层，或是用作电梯井或楼梯井的顶部或安装空调设备的建筑。
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