科学家们已经测量了月球的位置，月球的轨道，以及它的特性。
Scientists have measured the position of the moon, the orbit of the moon, the characteristics.
据《科学》杂志报道，这颗神秘的X行星的运行轨道远在海王星之外。
Science magazine reports that the mysterious "Planet X" moves in a distant orbit beyond Neptune.
用航天飞机将科学装备送往轨道空间站。
必定是科学家们没有探测到物质维系住了这些恒星的轨道。
It must be that scientists did not detect the orbit that held these stars together.
必定是科学家们没有探测到物质维系住了这些恒星的轨道。
It must be that scientists did not detect the orbit that held these stars together.
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