单词	activated sludge process
释义	activated sludge process noun : a sewage treatment procedure in which the decomposition of the raw sewage is hastened by the addition to it of biologically active sewage sludge Word History First Known Use 1916, in the meaning defined above
随便看	requires requiring requirings requisite requisiteness requisitenesses requisites requisition requisitioned requisitioner requisitioning requisitionist requisitionists requisitions requisitorial requisitors requisitory requital requitals requite requited requitements requiter requiters requites

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