In a small space, this lets your ears catch a lot of those song vibration.
在一个小空间里，这就会让你的耳朵听到许多声音的振动。
In this paper, the space free vibration analysis model for track structure is established.
本文建立了轨道结构空间自由振动模型。
In this paper, the space free vibration analysis model for track structure is established.
本文建立了轨道结构空间自由振动模型。
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