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乘常数 [chéng cháng shù]
[数] multiplying constant
- 为去掉另一个无穷级数，必须使任意常数乘之后等于零。
To get rid of the other infinite series, we must set the arbitrary constant that multiplies it equal to zero. - 强制基于精准数学要求，使得某个或多个最小二乘变量严格按照其他变量或常数表达。
A constraint is an exact mathematical condition that enables one or more least squares variables to be expressed exactly in terms of other variables or constants, and hence eliminated. - 他发现愈远的星系就远离得愈快，这便是我们所熟知的哈伯定律（相对远离速率等于距离乘上哈伯常数）。
He noted that the more distant galaxies were receding faster than nearby ones, in accordance with what is now known as Hubble's law (relative velocity equals distance multiplied by Hubble's constant).
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