详细解释:a. 无变化的, 不变的
n. 不变量
【化】 不变量
词型变化：
名词:invariance英语解释：
名词 invariant:
a feature (quantity or property or function) that remains unchanged when a particular transformation is applied to it形容词 invariant:
unaffected by a designated operation or transformationpersistent in occurrence and unvarying in nature同义词：changeless, constant, unvarying