基本解释[地球科学]海底扇谷英汉例句双语例句Two or over two lithofacies make up three facies association including slope- submarine valley, submarine fan and basinal plain.较大范围内两个或两个以上岩相组成斜坡—海底峡谷、海底扇、盆地平原三个相组合。submarine fan valley更多例句专业释义地球科学海底扇谷