Both axis and allies recognized the fundamental importance of the struggle for control of the sea lanes . 轴心国和同盟国都清楚地认识到控制海上交通线的斗争的极端重要性。
The roots of radio - frequency identification technology stretch at least as far back as world war ii , when transponders helped distinguish between axis and allied aircraft 无线频率识别技术的最早运用可以追溯到第二次世界大战,那时无线电发射机应答器帮助人们分辨轴心国和同盟国的战机。