To extract and purify type I collagen from pigskin, initial extraction and chromatography on semi -preparative HPLC were tested.是什么意思_To extract and purify type I collagen from pigskin, initial extraction and chromatography on semi -preparative HPLC were tested.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句