单词：density wave
density wave的用法和样例：
例句
- The wave involves the synchronization of stellar orbits.密度波牵涉到恒星轨道的同步化。
- The Lindblad and other resonances play a distinct role in shaping the orbits and delimiting the density waves.林布拉德共振与其他的共振，在塑造轨道与界定密度波上，扮演了决定性的角色。
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