溢流管 bleed off pipe; branch nozzle; down comer; down take pipe; downflow pipe; down ..
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down-comer tube 降水管
down comer annulus 下通环管
multiple down comer tray 多降液管塔板
central down-comer 中央循环管
length of down-comer 降液管长度
N a pipe that connects a cistern to a WC, wash basin, etc 下水管 (Also called downcome)
The compound tray has no down comer, gas and liquid counter flow through the holes of on the tray.
复合塔板不设降液管，气液同时逆流穿过筛孔。
The specially designed down comer removes the collection of the solid suspension at the tray and overcomes the congestion phenomenon during the process.
特殊设计的降液管有助于消 除塔板上固体悬浮物的聚集，克服操作过程中的堵塔现象。
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