?海蚀平原
... marine pipe-laying 海上铺管 marine plain 海蚀平原；海积平原 marine platform 海蚀台地；海上平台 ...
?海积平原
海洋三角洲平原
海蚀平原
Marine biologist David Black(ph) of the Scripps Institution of Oceanography says the abyssal plain is at once the most common and least studied habitat in the world.
NPR: Down Deep, An Unexpected Fish Boom
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。