Wrapping the select with our own widget allows us to put all the presentation logic related to the feed selection (adding and removing feeds) in a single place.
用我们自己的小部件来包装选择控件让我们能够将所有与此提要集合相关的表示逻辑（添加和删除提要）都放到同一个地方。
The utility model adopts the single row rolls and a filtering mesh belt wrapping on the roll to filter and dewater, so the dewatering area is large and the energy consumption is low.
本实用新型采用单排辊，过滤网带缠绕 于辊子上压滤脱水，脱水面积大，能耗低。
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