alluvial gold
短語詞組
- alluvial l gold 砂金;沖積砂金
- alluvial type gold placer 沖積砂金礦床
- alluvial gold deposit 沙金礦
- ALLUVIAL GOLD DUST 金粉
- alluvial gold production 砂金生產(chǎn)
- alluvial gold mine 砂金礦山
- washing of alluvial gold 砂金洗選
- separation of alluvial gold 砂金分選
- alluvial gold mining 砂金礦開采 返回 alluvial gold