sand filter layer的意思|示意
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砂滤层
sand filter layer的网络常见释义
砂滤层 砂滤层 sand blanket; sand filter bed; sand filter blanket; sand filter layer; sand in ..
sand filter layer相关例句
One of reasons for it is that graduation of manganese sand is not rational, which leads to partial confusion of filter layer construction.
分析原因：工艺改造时所选的锰砂有部分粒径不符合要求，导致级配不合理，造成滤层结构部分混乱；