When the contaminant source is wet material, the emission rate and air contaminant concentration are time-dependent.
当污染源为湿材料时，其散发量和室内的污染物浓度是随着时间变化的。
·2,447,543篇论文数据，部分数据来源于NoteExpress
Using Pearl River source water as raw water, the contaminant removal effect of carbon and sand filter after the biological aerated filter(BAF)pretreatment process was investigated.
以珠江广州段源水为处理对象，考察了曝气生物滤池（BAF）预处理工艺后炭砂滤池的除污效果。
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