英语词汇ultrabasic怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	ultrabasic
释义	ul·tra·ba·sic AHD[ŭl'trə-bāʹsĭk] D.J.[ˌʌltrəˈbeɪsɪk]K.K.[ˌʌltrəˈbesɪk]adj.Geology（形容词）【地质学】 Containing magnesium and iron and only a very small amount of silica. Used of igneous rock.超基性的：含有镁和铁和只有极少量的硅。用于火成岩
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