shelf冲积层: alluvial deposit; alluvion; ...下: below; down; under; undernea ...岩石: rock; roche; pena; roach; -l ...冲积层: [地质学] alluvial deposit; alluvion; alluvium冲积层；冲积地: alluvium下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:冲积层下岩石，即可在微信中查询翻译
