The particle size of sugar is of significance and it has been shown that castor sugar of small crystal size promotes better aerating ability than either coarser (A1) or finer (icing sugar).是什么意思_The particle size of sugar is of significance and it has been shown that castor sugar of small crystal size promotes better aerating ability than either coarser (A1) or finer (icing sugar).在线翻译_英语_读音_用法_例句