In these pits shops specialized channels, and impervious layer, used for the collection of refuse from fermentation gases and leachate.
在这些坑中铺有专门的管道和防渗层，用来收集垃圾发酵产生的气体和渗滤液。
In these pits shops specialized channels, and impervious layer, used for the collection of refuse from fermentation gases and leachate.
在这些坑中铺有专门的管道和防渗层，用来收集垃圾发酵产生的气体和渗滤液。
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