- drop pipe
- swing line
- swing pipe
- 起落: rise and fall; up and down
- 管: pipe; tube
- 摆管；传动管；起落管: swing pipe
- 摆绳；传动绳；起落管: swing line
- 水落管: down pipe; down spout; down-pipe, downspout; fall pipe; fall-pipe; gullet; leader pipe; rainspout; rainwater pipe; water spout; waterspout
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