Invariance principle
[计] 不变性原则
🧩 词语组成解析
n. 不变性\\n[计] 不变性, 不变式
🗣️ 情景例句
As a matter of fact,
事实上，
A servant is known by his master's absence.
主人不在可以看出仆人的品行来。
There was also a great deal of machinery on display.
参展的还有很多机器，