;
In other words, The Hermiticity of a matrix is invariant under unitary transformations.
换言之，矩阵
厄密性在幺正变换下保持不变。
,不变；时不变In other words, The Hermiticity of a matrix is invariant under unitary transformations.
换言之，矩阵厄密性在幺正变换下保持不变。
But diffeomorphism invariant theory leaves some problems to be explained, and the meanings of spacetime and physical theory are still in question.
但微分同胚不变
论存在需要解释问题，空时及物论意义仍不明确。
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