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environmental quality standard
agric.	环境质量标准指空气、水、土壤、噪声等污染标准，以保护环境
UN, ecol.	环境质量标准
environmental quality standard Normative documents and guidelines for determining the degree of environmental conditions and requirements to avoid negative and damaging effects, influences, and consequences
environ.	环境质量标准 (规范化的文档和指导方针，用来决定环境条件和需求的程度，用以避免负面的和毁坏性的影响和后果。)
environmental quality standards
plann.	环境质量标准

environmental quality standard: 12 phrases in 3 subjects

China	1
Technology	8
Water resources	3