Smooth, almost level area of the deep-ocean floor in which the gradient is likely to be as low as 1:10 000. The covering sediments are usually thin deposits of a pelagic ooze or distal turbidite.
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。