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Principle: Traditional tobacco is smoked by ignition. The temperature of tobacco when burning reaches 800 degrees. Nicotine, carbon monoxide, tar, etc. will be produced in the process of tobacco burning. At the same time, tobacco itself also has fragrance released. Smokers are mainly satisfied by smoking nicotine and tobacco fragrance. There are more than 2,000 kinds of harmful ingredients produced by smoking, The main components that cause harm to human health come from tar produced in the combustion process, However, the working temperature of the heating non-burning electronic cigarette is about 300. Not more than 300 degrees, Tar is mainly produced at over 400 degrees, In other words, Heating does not burn electronic cigarettes. Due to the relationship between temperature, A small amount of tar is produced, which can be ignored. Moreover, the temperature at which heating does not burn is only about 300 degrees, so there is no combustion, no open flame and no soot. However, the aroma and smell of tobacco are still released, and smokers can also obtain nicotine, so that smokers can also obtain the feeling of smoking real cigarettes.Method 1:　　《回归》：90年代，儿子举家移民，孙女却因学业暂时留在香港爷爷家。爷孙两人隔代沟通，妙趣横生。在生活中消解代沟，隔阂打破，亲情更上一层楼。徐海被俘，汪直身死后，除徽王府外，海匪几乎各自为战，再无几年前那种像样的战役，明军没有总督，各巡抚将领反而愈挫愈勇，私兵逐渐壮大，外加有当年杨长帆留下的燧发铳和抗倭战术，打起来也是越来越难。大学女生白墨桃在课外活动中于雷峰塔误入豪门公子尹苍冬的结界，而尹苍冬实际身份却是隐藏于人类世界的神羽族继承人，尹苍冬认定白墨桃是宿敌蛇族一员，对白墨桃展开...　　某天，汉娜前往苏格兰公干。在接下来的几个月里，汤姆保守孤独折磨，他意识到汉娜对自己的重要性，于是决定等她回来向其求婚。然而，汉娜在苏格兰