点击下载：上海交通大学：《材料导论》教学资源（英文）Introduction to Materials——Observing materials with your own eyes
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Professor Li Zhengdao said Don't believe any words of any authorityProfessor Li Zhengdao said Don’t believe any words of any authority
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点击下载：上海交通大学：《材料导论》教学资源（英文）Introduction to Materials——Observing materials with your own eyes
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