costeaning

名词 n.

英文释义

名词 n.
  1. A process for discovering metallic lodes by sinking small pits through the superficial deposits to the solid rock, and then driving from one pit to another across the direction of the vein, so as to cross all the veins between the two pits.

词形变化

costeanings plural
3 次浏览 数据来源: Wiktionary