The purpose is to remove defects cocoons, silk waste, as well as on most of the sericin oil and impurities, so soft and white fibers, although due fibroin emerged in luster and feel, while the fiber loose, to facilitate later processing.
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while the fiber loose
当纤维松动时
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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