楼房有专用电梯井道 楼房有专用电梯井道 The building has a special elevator shaf 电梯可以直接安装在专用井道内 The elevator can be installed directly in a special well lane 有中空的大厅或房间 有中空的大厅或房间 A hollow hall or room. 在在厅或房间家装井道安装电梯 Install elevator in home office or room 室外家装井道安装电梯 楼房内没有合适空间 There is no proper space in the building 在允许情况下，在室外加装井道安装电梯 Under the allowable circumstances, in the outdoor Installation of elevator with well path 环绕电梯中间有合适空间 环绕楼梯中间有合适空间 There is a proper space around the middle of the staircase 在中间加装井道安装电梯 Installing an elevator in the middle 电梯装在室外 楼房内没有合适空间，电梯只能安装在室内 There is no suitable space in the building. The elevator can only be installed indoors. 在楼板开出合适的孔，加装井道安装电梯 Open suitable holes on floor, install well and install elevator.