The corrupt practice of the original grinder was analyzed and an improvable way has been suggested. 着重分析了高锰酸钾生产中所用原锰酸钾粉碎机的严重弊端，并提出了具体的改进方法。
A big slicing machine sat on the broad wooden counter at one end of the shop, next to a giant red coffee grinder. 在商店一头的柜台上放着一个大型炊用切片机，旁边还放着一个大型的红色咖啡粉碎机。
