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Among them, covering theory, gas theory, endotherm theory and catalytic dehydration theory are usually applicable to cellulose fibers, while droplet theory and absorption of free radicals are applicable to synthetic fiber fabrics.Different combustion stages and the combustion performance of different fibers require corresponding flame retardants to be used to resist, thus forming various flame retardant mechanisms and interrupted flame retardant mechanisms. Flame retardant mechanisms can be broadly divided into the following types:　　反黑帮双雄王志淙（黄日华饰）与林永泰（陈锦鸿饰）同属O记部门，二人性格迥异，因此时常发生争执，但在工作上却不失为一对好拍档，是名副其实的欢喜冤家。Note: The above codes are all done according to the book. They all read the code of the book. The most important thing is that we understand the implementation of the policy mode. For example, the above form verification function is the code packaged in this way. We usually use JQuery plug-in form verification code to be packaged in this way. Therefore, we can also use this method to package forms and other learning in the future.If cyber war is still a wild west, it is obvious that citizens will become victims. Our culture, economy, education, health care, livelihood and communication are closely connected with the Internet. If an enemy country wants to use more "traditional" attack methods (perhaps terrorist bomb attacks or the release of a chemical agent) to play the greatest role, Why not start with blackmail software attacks, freeze people's bank accounts, close hospitals, make people unable to contact emergency workers, and ensure that people cannot communicate with their families during an inevitable period of chaos?Fu Confucian Temple