“beach placer”的概念、定义、翻译、参考文献-科学参考

单词	beach placer
释义	beach placer Encyclopedia 理学海底矿产资源释 beach placer海滨砂矿砂金、砂铂、金刚石、砂锡、石英、金红石、锆石、独居石、钛铁矿等有用矿物以及贝壳砂、砂砾在海滨地带富集而成的具工业价值的海底矿产资源。
随便看	parasitic signal parasitic solution parasitic star parasitic weed parasitic wood wasps parasitic zoonosis parasitism parasitism evolution parasitism of pathogen parasitizing behavior parasitoid parasitoid aggregation parasitoidism parasitoids parasitoid wasp parasitology parasitophorous vacuole para-spectrum parasporal crystal parastat para state para-state parastatistics parastrophic determinant parastrophic matrix

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