But diffeomorphism invariant theory leaves some problems to be explained, and the meanings of spacetime and physical theory are still in question.
同胚不变理论存在需要解释的问题，空时及物理理论的意义仍不
确。
But diffeomorphism invariant theory leaves some problems to be explained, and the meanings of spacetime and physical theory are still in question.
同胚不变理论存在需要解释的问题，空时及物理理论的意义仍不确。
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