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单词 principle of equivalence
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principle of equivalence
principle of equivalence n. (also equivalence principle) one of the fundamental postulates of the general theory of relativity, which states that at any point of space-time the effects of a gravitational field cannot be experimentally distinguished from those due to an accelerated frame of reference.The principle was proposed by Einstein in Ann. d. Physik (1911) XXXV. 898–908, and was first called äquivalenzprinzip by him in Ann. d. Physik (1912) XXXVIII. 360, 443.extracted from equivalencen.
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