c是什么意思
英文缩写：c
英文全称：symbol for the speed of light (in a vacuum, 299,792,458 meters per second)
中文意思：符号为光的速度(在真空状态下,299,792,458米/秒)
英文全称：symbol for the speed of light (in a vacuum, 299,792,458 meters per second)
中文意思：符号为光的速度(在真空状态下,299,792,458米/秒)