“幂等性”用英语怎么说？

刻划了非负符号模式矩阵的强迫(蕴含)幂等性.The potential idempotence of nonnegative sign pattern matrix is described.该模型具有数值可加型标准综合函数所具有的性质, 即单调性 、 有界性和幂等性.This model occupies some properties of additive standard synthesis function, namely, ...