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简要介绍了大洋多金属结核的组成、加工特点、结构形态，指出了锰在其中的重要地位，并阐述了开发结核中锰的意义。
The composition, processing characteristics and structure of the marine polymetallic nodules are briefly introduced. The important position of manganese is pointed out and the significance of manganese in the development of nodules is expounded.