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标准质 量
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全国环境空气质量标准
national ambient air quality standards
(美国环保局)
可接受的质量标准
acceptable quality level
合格质量标准
acceptable quality lever
标准质量
控制
standard quality control
质量保证验收标准
quality assurance acceptation standards
质量标准［规范］
quality specifications
质量验收标准
quality acceptance standards
验收质量标准
acceptable quality lever
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