Basic standard and method standard are the accessary part of environmental standard system or directive part, the formulate that is environmental standard provides unified language and means.

 
  • 基础标准与方法标准是环境标准体系的附属部分或指导部分,为环境标准的制订提供统一的语言和方法。
今日热词
目录 附录 查词历史