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placer 音标拼音: [pl'æsɚ] [pl'esɚ] n. 冲积矿,放置者 冲积矿,放置者 placer n 1: an alluvial deposit that contains particles of some valuable mineral Placer \Pla"cer\, n.
One who places or sets. --Spenser. [1913 Webster] Placer \Plac"er\, n. [Sp.] A deposit of earth, sand, or gravel, containing valuable mineral in particles, especially by the side of a river, or in the bed of a mountain torrent. [U.S.] [1913 Webster]
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