This paper elucidates the present situation of research and development of solid acid catalysts for the alkylation of isobutane with butene.是什么意思_This paper elucidates the present situation of research and development of solid acid catalysts for the alkylation of isobutane with butene.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句