esoteric
发表于 2025-4-1 05:00:53
Mohamed Amin Laouadi,Farid Mokhati,Hassina Seridi well understood. The laws of diffusion are laws which describe the diffusion of matter from one region to another as it is observed to be and not as it is predicted to be from considerations of the fundamental properties of the molecules in question.
痛苦一生
发表于 2025-4-1 07:19:27
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