placer deposit

短语词组

短语

• placer r deposit 砂积矿床
• placer gold deposit 砂金矿床
• the placer gold deposit 砂金矿体
• aeolian placer deposit 风成砂矿床
• offshore placer deposit 近海砂矿
• quarternary placer deposit 第四纪砂矿床
• eluvial placer deposit 残积砂矿床
• alluvial placer deposit 冲积砂矿床
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