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From 25th to 26th September, the "Global Mayors Dialogue·Hangzhou" and the 9th Hangzhou International Friendship City Mayor Forum were held in Hangzhou, Zhejiang. What did the mayors(representatives) from 24 cities in 15 countries(regions) talk about? What are the highlights of this special mayors’ conference? Ailan, a special foreign anchor from Indonesia, brought the answer with her camera.(Wu Junyi）

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该标准在吸取涉光气典型事故教训基础上，聚焦重大安全风险防控，规定了光气及光气化产品生产装置的规划布局、设计、生产运行、应急处置等安全要求，增加了使用双光气与三光气进行光气化产品生产、安全仪表系统和气体检测系统的设置等安全要求，并整合了《光气及光气化产品生产装置安全评价通则》(GB 13548)的技术内容。