Russia, Canada and Denmark, prompted in part by years of warming and the ice retreat this year, ratcheted up rhetoric and actions aimed at securing sea routes and seabedresources.
俄罗斯、加拿大和丹麦，促使部分今年年的变暖，冰撤退，加大言辞和行动旨在保障海上航线和海底资源。
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Natural resources in the open seas are regarded as the common properties for all humans. Based on that idea, such resources are managed by the International Seabed Authority (ISBA) set up in 1994.
Core sampling drill for deep seabed shallow strata is necessary equipment in exploration of deep seabed mineral resources and survey of deep seabed geology etc.