环境标准 huánjìngbiāozhǔn environmental standard Definitions Defs Origin Strokes Stroke Words Sentences Sents 环境标准 環境標準 huánjìngbiāozhǔn environmental standard Technical requirements and norms established by governments to protect environmental quality and maintain ecological balance
环境标准 環境標準 huánjìngbiāozhǔn environmental standard Technical requirements and norms established by governments to protect environmental quality and maintain ecological balance
