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Glossary term: 潮汐

Description: 在地球上,引力幾乎是恆定的,我們稱之為向下的引力。但在更遠的距離上,引力的強度和方向會發生變化,這些差異被稱為潮汐力。例如,地球和月球由於相互的引力吸引而圍繞著一個共同的質心運行,但地球靠近月球一側的物體會在引力作用下加速向月球運動,而地球另一側的物體所受的加速度會小一些。地球上的海水會在這些潮汐加速度的影響下,地球表面近月側和對側會形成 "潮汐隆起",從而產生地球潮汐。

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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
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This is an automated transliteration of the simplified Chinese translation of this term

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