韩国虎队

视频简介

子弹经过两百年的科学研究，从一个简单的铅球，变成性能极佳的弹药。科学新发现将介绍子弹的科学，以及子弹如何凭科技的进步，演化为现在的弹药。。The 'Mighty Eighth Air Force' tilted the balance for the Allies during World War II. This is the story of how they did it, using rare archival footage and dramatic eye-witness accounts of the airmen and the commanders themselves.。