Experiments are undergone to extract colorants from naturally colored cotton fiber.Results show that natural colorants are water or alcohol soluble substances with 2-benzyl benzofuran structure.是什么意思_Experiments are undergone to extract colorants from naturally colored cotton fiber.Results show that natural colorants are water or alcohol soluble substances with 2-benzyl benzofuran structure.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句