Hubble constant
01
哈勃常数, 哈勃参数
(cosmology) a measure of the rate at which the universe is expanding, determined from the observation of distant galaxies' recession velocities
语法信息
有生性状态
抽象
形态构成
复合词
可数
复数形式
Hubble constants
例子
The Hubble constant tells us how quickly the universe is expanding.
哈勃常数告诉我们宇宙膨胀的速度有多快。
