manganese concretion

 
  • 錳結核,錳質結核

manganese concretion的用法和樣例:

例句

  1. But despite millions of dollars of investment, the commercial extraction of manganese nodules never became reality.
    但是儘管擁有數百萬美元的投資,錳結核的商業化開採始終未能實現。
  2. Unlike manganese nodules, which are like golf balls scattered across the sea bed, these deep-ocean deposits occur in small areas around extinct hydrothermal vents.
    與錳結核像高爾夫球洞一樣分散在海底不同的是,這些深海礦物層則在熄滅了的海底煙囪附近小範圍內存在。

manganese concretion的相關資料:

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