standards_for_testing_methods

1.The national standards for film thickness testing methods are introduced.
介绍了国家标准关于漆膜厚度的测试方法。
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2.The national standards for film thickness testing methods are introduced. A brief introduction is made to the testing methods of dry and wet film thickness, and service range thereof.
介绍了国家标准关于漆膜厚度的测试方法。简要介绍了干膜和湿膜的测定方法和使用范围。
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3.The testing methods for inspecting the poisonous substance is also presented a-long with the explanation of related standards.
阐述了有害物质的检测方法，并对相关标准进行了说明。
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