The bottom of the hole plate is separated from a closed state when draining, and the water flow can flush and exhaust the precipitate.
排水时，将孔板底部脱离封闭状态，水流可将沉淀物冲起排出。
The bottom of the hole plate is separated from a closed state when draining, and the water flow can flush and exhaust the precipitate.
排水时，将孔板底部脱离封闭状态，水流可将沉淀物冲起排出。
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