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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.在参拜母亲坟墓的回程途中，真嗣（绪方惠美 配音）和葛城美里（三石琴乃 配音）遭遇了第七使徒的攻击，关键时刻2号机势如破竹挫败对手，真嗣也由此结识了2号机的操纵者式波·明日香·兰格蕾（宫村优子 配音）。与沉默寡言的绫波丽（林原惠美 配音）不同，明日香自信张扬，甚至有些自大，在和真嗣相处的日子里，彼此闹出不少的笑话。他们三人分别驾驶着零号机、初号机和2号机，抵抗了第八使徒猛烈的攻击，在这一过程中，淡淡的情愫悄然在这三个青年男女的心中萌生。不久后，第九、十使徒相继降临，真嗣他们面临着生与死的残酷考验……3. Physical period: Uniform circular motion is a kind of periodic motion. The so-called periodicity refers to the fact that after a certain period of time, the moving object repeats back to its original position, and the instantaneous speed repeats back to its original size and direction. The time it takes for an object to move in a uniform circle is called a period. The period is expressed by the symbol T, and the period is also a physical quantity describing the speed of uniform circular motion. The long period indicates the slow motion of the object, while the short period indicates the fast motion of the object.临江县的赵刚、赵飞是在强烈复仇心理支配下长大的两兄弟。他们发誓要杀掉所有对自己不公、不利的人。为了报仇雪恨，他们盗窃枪支和子弹，开始了疯狂的罪恶行动。一番密谋之后，赵氏兄弟把目标对准了二十年前强奸母亲致死的仇人马遂山，曾羞辱过赵刚的黑势力团伙头目冉红举、赵刚的昔日恋人黄小玲以及刑警队长钟亮。他们凶残狡猾，频频作案，神出鬼没，屡屡得手……警方虽严密排查、步步紧逼，却几次错过抓捕凶手的机会…… 就在杂情山穷水尽疑无路时，细心的钟亮发现了凶手的下一个目标，并找到了“二赵”潜伏的小区。此时，已经感到末日来临的“二赵”决定挺而走险，亡命天涯。一场更为扑朔迷离、惊心动魄的死亡追踪随即展开…...下塘集济世堂临街门处搭建了一高台，田五等人轮流上去，对围观的乡亲演说西南战况：生死搏杀、缺粮的艰辛、无药医治的痛苦，还有眼睁睁看着兄弟死亡的恐惧……这些军士都是林聪专门挑选的能言善道者，几年战场厮杀的经历，并不需要演戏。Characteristics and Application of LDPE Hot Melt Adhesive Powder