无中间出口的升降机竖井的英文

blind hoistway

blindhoistway

• 无:    not have; there is ...
• 中间:    among; between
• 出口:    exit
• 的:    4次方是 The fourth po ...
• 升降机:    elevator; jack; hy ...
• 竖井:    pothole; aven; cen ...