Polysaccharides, pectin, dextran, guar gum and chitosan have been used or tested for targeted drug delivery in pharmaceutical applications.是什么意思_Polysaccharides, pectin, dextran, guar gum and chitosan have been used or tested for targeted drug delivery in pharmaceutical applications.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句