“mining of beach placer”的概念、定义、翻译、参考文献-科学参考

单词	mining of beach placer
释义	mining of beach placer Encyclopedia 工学海滨砂矿开采释 mining of beach placer海滨砂矿开采在海滨地区开采富集于海底松散沉积物中矿产资源的作业。
随便看	d-d跃迁 dd跃迁 DE De DEA deacetylated chitin deacetylation deacidize deacon deactivating group deactivation deactivation and regeneration deactivation constant deactuate deacylase deacylation dead air dead angle dead axle dead band dead beat deadbeat deadbeat control deadbeat controller deadbeat function

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