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第一章 - ir.nctu.edu.tw · 第一章 緒 論 1.1 奈米材料簡介 奈米材料之定義 「奈米」(nanometer) 為一長度單位,約為人們頭髮直徑的八 萬分之一,或是十的負九次方米,相當於十億分之一米,十個氫原子
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