grinder

1. N-COUNT In a kitchen, a grinder is a device for crushing food such as coffee or meat into small pieces or into a powder. 食物研磨機(jī)

...an electric coffee grinder. …一個(gè)電動(dòng)磨咖啡機(jī)。

2. N-COUNT A grinder is a machine or tool for sharpening, smoothing, or polishing the surface of something. 研磨機(jī)

The grinder is used for making precision tooling. 這臺(tái)研磨機(jī)用于制作精細(xì)工具。