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这颗彗星的轨道和地球的轨道相交。 The orbit of this comet intersects the orbit of the Earth. | ||
地球沿椭圆形轨道运动。 The Earth orbits in an ellipse. | ||
我们把地球围绕太阳公转的轨道称为黄道，把月球围绕地球公转的轨道称为白道。 We the Earth around the sun to the track known as the ecliptic, the moon around the Earth to the track known as the White Road. | ||
阿波罗型小行星因定期地穿越地球轨道而构对地球的威胁。 Apollo asteroids pose a threat to our planet as they routinely cross Earth's orbit. | ||
形成季节的主要因素不是地球公转轨道的形状，而是地球自转轴的倾斜。 The tilt of the earth's axis, not the shape of its orbit, is what is responsible for the seasons. | ||
火星和地球的轨道随着时间而发生改变。 Mars and Earth have orbits which change with time. | ||
本文对地球同步卫星的发射轨道作了一些分析。 This paper provide some analyses of launch trajectory for launching geosynchronous satellite. | ||
一颗新的人造卫星被送上了环绕地球的轨道。 A new satellite has been put into orbit around the earth. | ||
还拥有足够的推力将卫星送入低地球轨道。 It would also have enough thrust to deliver a satellite to low-Earth orbit. | ||
好吧，这全都归结于地球沿着轨道绕太阳公转。 Well, it's all down to the Earth's orbit around the sun. | ||
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