invariant point的用法和樣例：
例句
- In this paper, we study the nonparametric statistical inference for one distribution change point.
摘要本文研究了連續分佈函數變點的非參數統計推斷問題。 - For periodic and quasiperiodic chain, there is more than one phase transition point at some parameter region because of the competition between the spin cluster and anisotropy.
對於周期和准周期鏈，由於各自旋集團和各向異性之間的競爭，模型在某些參數範圍可能出現兩個以上的相變點。
