以下为句子列表：
英文: Both clocks aim to measure with 99.99997 percent accuracy how much the microgravity of low-earth orbit slows time compared with measurements made on the ground.
中文: 这两座钟的目标都是要以99.99997%的精确度，去测量低轨道所受的微重力（较之于地球表面）会使时间变慢多少。
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英文: One year is one Earth orbit around the Sun.
中文: 一年就是地球绕太阳一周的时间。
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