音标与读法

这里为大家介绍下costean 是什么意思，希望能帮助到各位朋友。

中英文翻译

vi.

【矿物】井探，掘井勘探，水力冲刷勘探。

Costeaning is the process by which miners seek to discover metallic lodes. It consist in 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, in such manner as to cross all the veins between the two pits.

单词网DancI.583316.cOm