placer

名词 placer:

1. an alluvial deposit that contains particles of some valuable mineral

1. A place where a placer deposit is washed to extract its mineral content.
   砂矿开采地一个用来清洗出有用矿物的砂矿开采地

plac.er

n.（名词）
A glacial or alluvial deposit of sand or gravel containing eroded particles of valuable minerals.
砂矿，砂积矿床：一种砂砾或碎石的冰河沉积物或冲积沉积物，包括有价值的矿物成份
A place where a placer deposit is washed to extract its mineral content.
砂矿开采地：一个用来清洗出有用矿物的砂矿开采地

来源：
Spanish [shoal, placer]
西班牙语 [浅滩，砂矿]
from Catalan placer [shoal]
源自 加泰罗尼亚语 placer [浅滩]
from plassa [place]
源自 plassa [放置]
from Medieval Latin placea * see place
源自 中世纪拉丁语 placea *参见 place