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锰结核分布于深邃莫测的大洋底的许多地区。早在一百多乍以前,对锰结核的存在及其有趣的地球化学特性就巳有所了解,但是,有
Manganese nodules are found in many areas of the deep, unpredictable ocean. As early as more than 100 days ago, the existence of manganese nodules and their interesting geochemical characteristics were known. However, there are