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graded index optic fiber

英 [ˈɡreɪdɪd ˈɪndeks ˈɒptɪk faɪbə] 美 [ˈɡreɪdɪd ˈɪndeks ˈɑːptɪk ˈfaɪbər]

集束性光导纤维

计算机

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