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One last thing on this subject, The 7.62 mm traced armour-piercing firebombs fired by the 81-1 family, Although the name is a little long, But compared with ordinary munitions, The difference is still well understood: Tracing and burning are simple, Is to add two corresponding drugs, The armor piercing is to replace the steel core behind the bullet's brass back armor (also known as bullet head) with a harder tungsten alloy core with stronger penetration to hard targets. The latter is also the tail-stabilized shelling penetrator used on the third generation of modern main battle tanks (abbreviation: APFSDS) is one of the two main materials (the other is the notorious, highly radioactive depleted uranium penetrator core, The user country is mainly the United States, while China mainly uses tungsten alloy penetrators, Less pollution and better performance, The United States does not need to. First, the United States does not pass the standard of tungsten treatment technology. Far from the level of our country, Secondly, the United States is a tungsten-poor country. It also wants to fully use tungsten alloy bombs, But it can't be used, But as a nuclear Power, There is a lot of depleted uranium as nuclear waste, so depleted uranium is selected as a substitute. As for tungsten alloy and depleted uranium, after putting aside the key additional condition of radioactive pollution, the pure question of who is better in armour-piercing performance is not directly related to this article, so it will not be described in detail).7岁女孩张望和父亲张国华相依为命，生活虽是清贫，但还是生活的很幸福。一天张望突然流鼻血不止，去医院检查，才知得了急性白血病，治疗需要30多万的费用，筹钱无果的张国华整日以泪洗面；而张望，清楚自己的家庭情况，毅然决定放弃治疗。记者王小月得知此事，赶往张国华家中，才得知了张望的真实身世.....事件经媒体曝光后，张望引起社会各界关注，全国各地纷纷捐款资助，很快，张望的医疗费就凑够了。感受到社会爱的力量和无数陌生人的关心，也使张望变得无比坚强，她用常人难以想象的痛苦接受着治疗，并一次一次经历着鬼门关，然而就在大家都认为张望的病快要好起来的时候，张望却做了一个出乎所有人意料的决定..........一代英雄人物，生命即将走到尽头，多年之后还有诗人写道：生当作人杰，死亦为鬼雄。伴随着现代社会的越加成熟，晚婚现象越来越严重，独身主义者也越来越多。以前过了40岁还没有结婚的人会遭人侧目，现在则已经再平常不过。而随着这一现象的逐渐普遍，日本人少生孩子或者不生孩子，女性不再只能在家相夫教子，而是可以和男人们一起在工作上打拼江山。现今日本社会已经面临这一翻天覆地的变化，这也成为了新时代日本人的课题。不少匠人的身份得到飞跃，研究理论与传授的学者也开始得到尊重。