quartz crusher

歴史的

(now chiefly historical) A machine designed to crush quartz in order to extract gold.

日本語の意味

（主に歴史的な用法）金の抽出を目的として、石英を粉砕するために設計された機械

The old quartz crusher stood silent at the edge of the dig, a reminder of the gold rush era.

採掘場の端に静かに佇むその古い、金を取り出すために石英を砕く機械は、ゴールドラッシュの時代を思い起こさせた。

意味（1）

(now chiefly historical) A machine designed to crush quartz in order to extract gold.

Mrs Ester did not worry about gold. The quartz crushers were already more important.

quartz crushers

（ plural ）