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maximum contaminant level
environ. 最大污染水平【度】
tech. 最大污染水平
water.res., ecol. 最大污染物水平
 English thesaurus
Maximum Contaminant Level
abbr., water.suppl. MCL (EPA)
maximum contaminant level: 12 phrases in 3 subjects
Earth sciences4
Technology5
Water resources3