invariability

n.不变性

固定性；不变性；永恒

名词

1、The invariability of the laws of physics is a fundamental principle in science.
物理定律的不变性是科学的基本原则。
2、His love for her is the one constant in his life, an invariability that he cherishes.
对她的爱是他生活中唯一不变的东西，是他珍视的永恒。