oceanic crust
noun [ C, usually singular ] geology specialized uk/ˌəʊ.ʃi ˈæn.ɪk ˈkrʌst/ us/ˌoʊ.ʃi ˈæn.ɪk ˈkrʌst/
大洋地壳
the part of the outer rocky layer of the earth that is under the oceans and is thinner than the layer under the land
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。