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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).4. How do I unsubscribe?贪得无厌 才能学无止境！1. Under the nodejs installation path, create two new folders, node_global and node_cacheWomen: 500m, 3000 m relay;说到的才能，在下又如何能比得上贵国智谋高远之士呢？尹将军说的是……韩王成若有所思，脑海中浮现出一个身影，只是有待确认。特約演員仇樂秋片場失意，唯一的希望是由他主演的文藝電影《一臉茫然》能令他一朝得志。情場上，秋與女友恩妮感情還好，但自卑的他總是擔心恩妮會離他而去。一天，秋的爺爺仇海凡突然出現，凡生性搗蛋麻煩，令秋的日子過得難上加難。