By this hydrogen arc discharge method film-like or web-like substances, which are mainly made up of SWNT bundles determined by TEM and SEM observations, were obtained.是什么意思_By this hydrogen arc discharge method film-like or web-like substances, which are mainly made up of SWNT bundles determined by TEM and SEM observations, were obtained.在线翻译_英语_读音_用法_例句