William Ryan, of Columbia University's Lamont-Doherty Earth Observatory outside New York, says there are fewer nodules than people generally believe and most of them are in very deep water.
威廉·莱恩(供职哥伦比亚大学莱蒙特-道荷提地球观测所，位于纽约城外)说，锰结核比人们通常认为的要少，而且大部分位于深水。
William Ryan, of Columbia University's Lamont-Doherty Earth Observatory outside New York, says there are fewer nodules than people generally believe and most of them are in very deep water.
威廉·莱恩(供职哥伦比亚大学莱蒙特-道荷提地球观测所，位于纽约城外)说，锰结核比人们通常认为的要少，而且大部分位于深水。
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