placer deposit
常见例句
- Placer deposit is highly developed in USSR.
苏联的砂矿矿床比较丰富。 - A middling placer deposit of tin has been discovered in Jiudaowan district.
九道湾地区已发现中型砂锡矿床。 - Up till now several grains of diamond have been found in the Sinian, Triassic and Cretaceous clastic rocks, but in the lower reach the river there existed Quaternary industrial diamond placer deposit.
在震旦系、三叠系和白垩系碎屑岩中均找到共约数颗微粒金刚石，而在沅水下游则富集有第四纪工业砂矿床。 返回 placer deposit