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赫柏定律
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赫柏定律
hè bó dìng lǜ
西元一九二○年赫柏利用光谱测量许多星系,结果发现许多星系逐渐远离我们太阳系,整个宇宙不断的在膨胀。赫柏提出星系远离的速度与它和地球的距离成正比,即称为「赫柏定律」。
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更新时间:2025/10/24 6:24:43