By intercalating chain-extender, the self-emulsifying anionic waterborne polyurethane emulsions which have the block structure have been prepared.是什么意思_By intercalating chain-extender, the self-emulsifying anionic waterborne polyurethane emulsions which have the block structure have been prepared.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句