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环境空气质量标准
Ambient air quality standard
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海洋沉积物质量
Marine sediment quality
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农田灌溉水质标准
Standards for irrigation water quality
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土壤环境质量标准
Environmental quality standard for soils
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水质 PH值的测定 玻璃电极法
Water quality--Determination of pH value--Glass electrode method
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室内空气质量标准
Indoor air quality standard
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保护农作物的大气污染物最高允许浓度
Maximum allowable concentration of pollutants in atmosphere for protection crops
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