The ocean floor in those parts of the oceans that are more than 2000 m deep. It occupies approximately one-third of the Atlantic and Indian Ocean floors, and three-quarters of the Pacific Ocean floor.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。