First level of processing mainly USES the physical methods, which removes the suspended solids and the inorganic substance in the water.
一级处理主要采用物理法，用来去除污水中的悬浮物质和无机物。
The anti-bac filter provides the first level of filtration to remove microscopic sediments such as sand, dirt, suspended solids and harmful bacteria.
抗菌高流量滤芯提供第一层的过滤管道，有效过滤微细沉淀物例如：沙子，灰尘，悬浮物和沉积物中有害细菌。
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