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1.The satellite orbited the Earth at an altitude of 36,000 kilometers.
卫星在地球上空36,000公里的高度运行。
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2. The spacecraft's orbital path was carefully planned to avoid collisions with other objects in the solar system.
宇宙飞船的轨道路径被仔细规划，以避免与其他太阳系中的物体发生碰撞。
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3. The scientists used a sophisticated computer model to simulate the effects of the planet's gravity on the orbitingspacecraft.
科学家们使用复杂的计算机模型来模拟行星引力对绕行太空船的影响。