The coarse particle from the classifier will be fed back to the mill inlet through an air slide and an impact weighing feeder. and the fine particle carried by air to the classifier bag filter.是什么意思_The coarse particle from the classifier will be fed back to the mill inlet through an air slide and an impact weighing feeder. and the fine particle carried by air to the classifier bag filter.在线翻译_英语_读音_用法_例句