gulch-gold

gulch-gold

美 　英

• 網絡砂金；干谷

例句

The upheaval zone in upper mantle is the primary factor controlling the distribution of gulch-gold mines and lode gold mines.

上地幔隆起區是控制砂金礦和巖金礦面式分布的主要因素。

During Quaternary period, the gulch-gold mines are eventually formed with the action o. . .

在第四紀，在冰川和徑流作用下最終形成了砂金礦床。