cobalt-rich crust sample

• 富钴结壳

cobalt-rich crust sample的用法和样例：

例句

1. 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.
   摘要富钴结壳因富含丰富的战略金属钴，已成为国际上竞相研究的热点。