这些研究并不便宜——仅加拿大的17次北极探险就花费了1.17亿加元。但是这3个国家争夺北极的努力,以及其他几十个国家对海洋的要求,对海洋学来说是一笔巨大的财富。 仅在北极地区,海底测绘就揭示了几座沉没的山 ...
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