Stearic acid, triethanolamine and chloroacetic acid were used to synthesize, under some conditions, betaine of triethanolamine fatty acid ester.是什么意思_Stearic acid, triethanolamine and chloroacetic acid were used to synthesize, under some conditions, betaine of triethanolamine fatty acid ester.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句