cobalt- rich的用法和样例：
例句
- To strip it from sea-bed rock and transport it to seabank, it is necessary for us to understend the friability of cobalt crust.
欲将结壳从海底基岩上剥离并采出海面，必要弄清钴结壳的破碎特性。 - Ocean cobalt-rich crusts contain strategic metal cobalt, and form on substrate rock face with some microtopographic variations.
摘要富钴结壳富含战略金属钴等元素，其表面一般有微地形起伏。
