Denmark did not ban the use of PCBs until 1986, the ban letter has claimed, citing a "working document" created in 2001 by the Helsinki Commission.
丹麦1986年之前没有禁止使用的多氯联苯，禁令信声称，理由是“工作文件”于2001年创建的赫尔辛基委员会。
The Information Service of the Technical Research Centre of Finland is responsible for compilation and processing of the bibliographic information as a consultant for the Helsinki Commission.
芬兰技术研究中心的信息服务负责编辑和处理参考书目信息，作为该委员会的参考。
The Information Service of the Technical Research Centre of Finland is responsible for compilation and processing of the bibliographic information as a consultant for the Helsinki Commission.
芬兰技术研究中心的信息服务负责编辑和处理参考书目信息，作为该委员会的参考。
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