Co-rich Fe-Mn crusts的用法和樣例：
例句
- The majority of researchers believe that the dominant manganese oxide of Co-rich crusts is vernadite.
大多數研究者認為富鈷結殼中的錳礦物主要是水羥錳礦。 - The cobalt-rich crusts on the seabed floor are abundant in cobalt, so its exploitation has become a one of important research domains in the world.
摘要富鈷結殼因富含豐富的戰略金屬鈷，已成為國際上競相研究的熱點(diǎn)。
