basic sill床: I層面形成后基性巖床: post-bedding basic sill基性巖: base rock; basic rock; basicrock; basite; subsiliceous rock; ultra high frequency; ultra high strength變基性巖: metabasite變質(zhì)基性巖: metabasite下載手機(jī)詞典可隨時隨地查詞查翻譯