- external overflow
- 流管: stream; tube; flow pipe; flo ...
- 溢流管: bleed off pipe; branch nozzle; down comer; down take pipe; downflow pipe; downcomer; downspout; downtake pipe; drain tube; flooding pipe; folooding pipe; leak-off pipe; ouvrflow pipe; overflow fitting; overflow pipe; overflow tube; return tube; riser pipe; run-down pipe; runback; scupper; spill pipe; spillover; tailpipe; telltale; tube， overflow; warning pipe; ylg
- 溢流溢流管: overflow
- 回流管溢流管: overflow pipe
- 摆动溢流管: return swing arm drip
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