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Keratin is a tough, fibrous protein found in hair and nails.
角质是一种硬纤维蛋白，在头发和指甲中都存在。
youdao
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The paper introduced the fibrous protein plate method in details.
文中详细地介绍了纤维蛋白平板法。
youdao
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The paper introduced the fibrous protein plate method in details.
文中详细地介绍了纤维蛋白平板法。
youdao