National standards and trade standards are divided into compulsory standards and recommendatory standards.
国家标准、行业标准分为强制性标准和推荐性标准。
Article 3 The standards for work safety are classified into two categories: compulsory standards and recommended standards.
第三条安全生产标准分为强制性标准和推荐性标准。
The food packing materials must conform to the laws and regulations of the State, and meet the requirements of compulsory standards.
用于食品包装的材料必须符合国家法律法规及强制性标准的要求。
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