dumeiwen
专业玩hifi，线材用光纤好，还是同轴好？ - 读美文网
7 hours ago ... 光纤是光导纤维的简写，在我们生活中运用比较广泛，尤其是马路上会出现一些下有 光缆等字样，一般光纤都封装在塑料保护套中，这样在弯曲的 ...
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