• 1. export and import licensing system: 出进口许可制度
• 2. import and export licensing system: 进出口许可证

• 1.Article 2 the state adopts the classified administration and a licensing system for the production, operation, purchase, transportation and import and export of precursor chemicals.
  第二条国家对易制毒化学品的生产、经营、购买、运输和进口、出口实行分类管理和许可制度。
  dict.yoduao.com
• 2.Article 2 the state adopts the classified administration and licensing system to the production, distribution, purchase, transportation and import and export of precursor chemicals.
  第二条国家对易制毒化学品的生产、经营、购买、运输和进口、出口实行分类管理和许可制度。
  dict.yoduao.com

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