In this article, NKC-9 resin was tested as catalyst and it was proved to be better than S-54 for this reaction system.是什么意思_In this article, NKC-9 resin was tested as catalyst and it was proved to be better than S-54 for this reaction system.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句