relatively invariant measure

例句：

1. 1.The temperature invariant measures the amount of heat energy that remains unchanged over time.
   温度不变量测量的是随着时间的推移而保持不变的热量能量。
2. 2. The invariant is a mathematical concept that describes the behavior of a system when its variables remain constant.
   不变量为数学概念，描述的是当系统变量保持不变时系统的行为。
3. 3. Invariants are used in physics to describe the properties of materials that remain constant under different conditions.
   在物理学中，不变量用于描述材料在不同条件下保持恒定的属性。