arrastra

n. 用来磨碎金或银的研磨机

词形变化

arrastras 复数 arrastras

别名

arrastre rastra

释义与例句

n.
  1. 1.

    A device formerly used by gold-miners for grinding auriferous quartz, crudely resembling a mortar and pestle, with the crushing element dragged around by horse or mule.

词源

Borrowed from Spanish arrastre.

来源：wiktionary