物理学中无量纲的量就是不需要单位的量。
Dimensionless quantities in physics are those that require no unit .
采用自然单位和无量纲变换都是科研上常用的方法。
Both natural unit and dimensionless transformation are usual methods used in scientific research.
本文给出寻找无量纲变换的一种具体作法，通过物理方程常数的压缩与恢复得出自然单位与无量纲变换相一致的结论。
With reducing and regaining constant, it is showed that natural unit and dimensionless transformation are the same in physical equation.
我们是通过电的单位和量纲来表示电场的单位和量纲的，如果我们把真空的电容率定义为无量纲的量，请用基本力学量米、千克、秒来表示电荷的量纲。
Express the unit and dimension for the electric field in terms of unit and dimensionality of charges, if we take the permittivity of the empty space as dimensionless quantity.
我们是通过电的单位和量纲来表示电场的单位和量纲的，如果我们把真空的电容率定义为无量纲的量，请用基本力学量米、千克、秒来表示电荷的量纲。
Express the unit and dimension for the electric field in terms of unit and dimensionality of charges, if we take the permittivity of the empty space as dimensionless quantity.
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