美国聯邦标准---1970 criteria pollutants (提出) (a) primary standards(初级标准)：was immediate protection of the public health regandless of cost (非做不可) (b) secondary standards(二级标准)：to prot...
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Common Primary Standards 常用的基准物质
National Primary Standards 副计量基准
primary standards laboratory 原级标准实验室
WMO primary standards 世界气象组织一级标准气
Primary Standards and Methods 主要测试方法与标准
primary standards of wavelength 原始波长标准
national primary kilogram standards 国家千克基准器
primary drinking water standards 饮用水基本标准
primary science curriculum standards 小学科学课程标准
For some research purposes and possibly for referee work, analyzed primary standards may be obtained from the U. s. Bureau of standards.
对于某些研究工作和仲裁工作，可以从美国标准局获得经过分析的一级标准物。
The primary requirement to successfully applying this pattern is the incorporation and enforcement of the required design standards.
成功应用该模式的主要需求是相关设计标准的引入和加强。
Even though the regulation of these standards was the primary responsibility of the Federal Reserve, Bair authorized her staff to purchase a large industry database to confirm their suspicions.
尽管这些标准的制定是美联储的主要责任，拜尔仍授权下属购买了一个大型产业数据库，以证实他们的怀疑。
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