frequency identification

• 频率识别

frequency identification的用法和样例：

例句

1. 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。