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FIG. 2 is an enlarged schematic view of a partial structure of FIG. 1;Endothermic theory: When the flame retardant is heated, endothermic reactions occur, such as decomposition, melting, sublimation, phase change, etc., which make the fiber dissipate heat rapidly and fail to reach the combustion temperature.As above, the code uses the policy pattern to refactor the code. It can be seen that the code responsibilities are updated clearly and the code becomes clearer.李敬文急忙问道：你们驻的地方离丰县多远？林聪道：有小两百里路呢。在虞姬面前，根本就没有那个楚霸王，只有一个痴情的好男人。Industry 4.0 will form an intelligent network of ubiquitous sensors, embedded terminals, intelligent control systems and communication equipment through CPS cyber-physical systems. Make people interconnected with people, people with machines, machines with machines, and then complete the horizontal integration between enterprises through the value chain and the network, the vertical integration of flexible and reconfigurable networked manufacturing systems within the enterprise, and the end-to-end digital high integration throughout the entire value chain. ?他们看的是《大靖律法》。