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These examples illustrate an important principle in the special theory of relativity.
这些例子阐明了特殊的相对论中的一个重要的原理。
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The equivalence principle of general relativity is also advanced.
扩充了相对论的等效原理。
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The equivalence principle of general relativity is also advanced.
扩充了相对论的等效原理。
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