Commercial sodium lignosulfonate (raw SL) was purified with ionic-resin method, ultrafiltration, long chain aliphatic amine extraction and solvent extraction.是什么意思_Commercial sodium lignosulfonate (raw SL) was purified with ionic-resin method, ultrafiltration, long chain aliphatic amine extraction and solvent extraction.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句