实物粒子是指静止质量不为零的微观粒子，如电子、原子和分子等。
The object particle means to the microcosmic particle that its static mass is not zero, for example, electron atom molecule and so on.
实物粒子是指静止质量不为零的微观粒子，如电子、原子和分子等。
The object particle means to the microcosmic particle that its static mass is not zero, for example, electron atom molecule and so on.
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