high-level placers 高层位漂砂矿 ; 高级丘漂砂矿
sea-beach placers 海滩砂砾矿床
regeneration of gold placers 砂金矿再生
beach placers 滨海砂矿
gold placers 砂金矿
zircon placers 锆英石砂
platinum placers 铂砂矿
placers-forming rule 成矿规律
以上来源于: WordNet
N surface sediment containing particles of gold or some other valuable mineral 冲积矿
N (in combination) 冲积矿的
placer-mining
In the metallogenetic process of gold placers, oxidation-reduction played an important role.
在砂金成矿过程中，氧化还原反应起着积极作用。
The geological conditions of the Shandong Peninsula arc similar to the geological features of the marine gold placers in the world.
山东半岛地质条件与世界海滨砂金矿床形成地质条件基本上相似。
Quartz, zircon, magnetite, gold are major constituents of littoral placers in Shandong province, while shell, ballstone, ilmenite, rutile being secondary.
山东省滨海砂矿以石英、锆英石、磁铁矿、砂金等为主，其次为贝壳、球石、钛铁矿、金红石等。
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