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flashboard (調節水位的)閘板。

flasher

Feeding mechanism : up roller , middle flashboard and down bell jar or double bell jar feeding mechanism with hydro - automatic drive , featured as easy operation , convenient maintenance and good air - tightness 加煤機構:液壓驅動自動加煤裝置,采用上滾筒中插板下鐘罩機構或雙鐘罩結構,操作簡單,維修方便,氣密性好。