楼梯间 staircase ; stair well ; stairway

封闭楼梯间 [建] Enclosed staircase ; enclosed stairwell ; enclosed staircase enclosed stairway

消防和救援楼梯间 fire fighting and rescue stairway

楼梯间出口 stair exit

楼梯间宽度 width of stairway

楼梯间封闭墙 stairway enclosure

内部楼梯间 interior stairway

楼梯间上下 Up and down stairs ; Stairs up and down ; Upper staircase

楼梯间钥匙 Apartment stairway key