名词
中文翻译：摆线
同义词：
['trajectory', 'path']
例句：
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1. The engineer calculated the trajectory of the spacecraft.
工程师计算了航天器的轨迹。
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2. The path of the river is marked by tall trees on both sides.
河流的路径两边被高大的树木标出。
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3. The trajectory of the satellite was carefully planned to avoid collisions with other objects.
卫星的轨迹经过精心规划，以避免与其他物体相撞。