gulch-gold

释义

砂金；

Air current boundary layer method for pneumatic gulch-gold separation and pneumatic separation machine
Reports on the Newlin's Gulch Gold Placer Company
Key paragenetic features of the Dublin Gulch gold deposit: An important type example of an Intrusion-Related Gold Deposit in the Tom...
Gulch-gold separation agitating chute
The origin and enrichment of gold in gulch-gold mines located in northern region of Heilongjiang Province
Vibrating-washing machine for gulch-gold
Oregon Gulch Gold Mine, California, 1866-1868
GULCH OF GOLD.
The Dublin Gulch intrusion-hosted gold deposit, Tombstone plutonic suite, Yukon Territory, Canada
Lyons Gulch Placer Gold Tests 1 & 2