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这个是活塞，拉动这个连杆的东西，然后风就从这个孔里面出来，这里会挨着熔炉，气流就这样进入熔炉，炉火会燃烧的更加旺盛……这个连杆拉动的过程，就相当于皮橐干瘪之后再次充满气体，能够连续使用，效率非常高，而且省时省力。In addition, As Zhang Xiaobo said, On the front line at that time, Wearing or not wearing a helmet is a "choice", Because Vietnam is located in Southeast Asia, The climate is hot and humid, Helmets are heavy and airtight, Wearing it is very easy to cause heatstroke, Particularly in fast maneuvers, This is the easiest way to do strenuous activities such as running. Therefore, in order for the troops to fight more efficiently, There would be no mandatory order for everyone to wear a helmet, If you don't want to wear it, you can choose to wear a cloth cap with eaves. So in the vast majority of relevant historical photos, Among our troops participating in the war, The highest percentage of helmets is worn by artillery, It is mainly used to defend the fragments of enemy artillery and various hard objects brought up by explosions in artillery warfare. Even some border militiamen wore helmets in large numbers, On the contrary, the impact is at the forefront, Infantry units carrying out a large number of mobile combat missions are rarely worn, Investigate its reason, It is for the infantry troops to carry out large-scale interspersed operations frequently. Exercise is enormous, It is really inconvenient to wear helmets, This approach has both advantages and disadvantages, It is not good to judge right or wrong here, but when facing such a horrible "killer bee" on the ground on 149, it is regrettable and regrettable that the heavy casualties caused by the low wearing rate of helmets have to be said. If they had worn helmets instead of military caps like Zhang Xiaobo, the casualties caused by the sting attack of "killer bee" would have been much smaller.这才是大家心中的武林侠客。　　However, ...龙王老梁从技能技巧到战术战略细心培养钟宁，告诫钟宁单纯杀戮是赶不走日本鬼子的。被老梁所感染，钟宁开始接受共产党提出的全民抗战的思想，但父亲被害的仇恨却始终影响着她的选择。在自己的私仇与老梁反清乡的任务产生冲突的时候，她还是离开了猎狼人部队。她团结了同样被日本侵略者迫害的家破人亡的同伴武馆传人汤芍、资本家小姐林迭，用女性的智慧铲除仇人。仇恨是钟宁前进的动力，但仇恨也是扭曲了钟宁人生的毒瘤。二人这边相依上车，车子扬长而去，剩下了极其茫然的杨长帆与戚继光。