reuse factor
Computing term for the proportion of code, components, or resources that can be reused in a system or project.
The reuse factor of this software is very high.
We are promoting modularization to increase the reuse factor.
再利用率 is a specific metric or ratio, while 再利用 refers to the act or concept of reuse in general.
Compound of 再利用 (reuse) + 率 (rate, factor). The exact historical derivation is uncertain, but the word follows a common technical compounding pattern.