| 释义 |
光速光速[guāng sù]1.■speed of light; velocity of light （光磁）; light velocity; ray velocity:光速约为每秒300000公里。The velocity of light is about 300000 kilometres per second.
常用词组1.■光速半径 velocity of light radius;2.■光速不变原理 permanent principle of light velocity;3.■光速圆柱面 velocity-of-light cylinder;4.■光速（粒）子 luxon |