chain and backet elevator

例句：

1. 1. The new chain and backet elevator has been installed in the lobby.
   新安装的链条和背带式电梯已经安装在大厅了。
2. 2. The elderly often use this kind of chain and backet elevator for their daily commute.
   老年人经常使用这种链条和背带式电梯进行日常通勤。
3. 3. The chain and backet elevator is a popular choice for its convenience and efficiency.
   链条和背带式电梯因其便利性和效率而受到广泛欢迎。