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张杨见了，温声安慰道：你别担心。"Sensitivity is also called ISO, which is simply how much light a mobile phone feels when shooting. According to your on-site light, if the on-site light is sufficient, of course, it can be low. If the light is insufficient, it is natural to use high sensitivity. After the high sensitivity comes out, the noise of the photo will be greater. The so-called noise is the kind of noise that you see with a lot of graininess. "当然了，这件事情一定要滴水不漏地瞒着。Xinhua News Agency International Department Ling ShuoNote: When conducting iptables experiments with reference to this article, please be sure to do it on your personal tester.断水全速往项庄长剑尖端看去，那处使上力气。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).