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| 91. | Galileo proved that the earth moves around the sun like the other planets. |
| 伽利略证明地球像其他行星一样围绕太阳转。 |
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| 92. | newly invented telescope on the heavens to prove that the planets revolve around the sun rather than around |
| 在1609年为了证明行星围绕着太阳转动而不是地球，伽利略作为第一人使用当时最新发明的望远镜观察了星空，这一创举是他最伟大的荣誉。 |
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| 93. | One kind is on the earth, the other is a satellite placed in space around the earth. |
| 科学家们已建立了两种中继站，一种在地球上，而另一种是放在地球周围太空中的卫星上。 |
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| 94. | But in three years that ratio is expected to flip, meaning that by 2001 most signals zipping around the |
| 但三年以内这个比例会迅速上升，这意味着到2001年，飞绕地球的大多数信号都将是“机器与机器的对话”。 |
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| 95. | For example, in1543as a time when most people believed that the sun and the planets circled around the |
| 例如，在1543年，就在大多数人相信太阳和其他行星是绕地球运转的时候，有一个叫哥白尼的人却提出，地球和其他行星是绕太阳运转的。 |
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| 96. | They moved as if they were stuck to a great ball turning around the earth. |
| 早期的天文学家还认识到，所有的星星好像是一起移动，就好像是固定资在一个绕地球运转的大球上。 |
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| 97. | There are nine planets travelling around the sun, the earth is one of them |
| 有9个行星围绕着太阳转，地球是它们之一 |
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| 98. | Copernicus' astronomical model in which the Earth rotates around the sun. |
| 哥白尼的地球环绕太阳周转的天文模型。 |
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| 99. | explained if a planet was moving in a small circle at the same time it was moving in a much larger circle around |
| 有的科学家说，行星在围绕地球这个较大的圆周进行运动的同时如果还进行小的圆周运动就可以解释这种现象。 |
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| 100. | Such was the case with Copernicus and his theory that the earth revolves around the sun. |
| 哥白尼同他的日心说理论就遭到过这样的遭遇。 |
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