invariant
invariantadjective- never changing
永远不变的,始终如一的,恒定的
the pattern of cell divisions was found to be invariant.
人们发现细胞分裂的方式是不变的。
noun- (Mathematics)a function, quantity, or property which remains unchanged when a specified transformation is applied
(数)不变式,不变量
派生invariancenoun
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