英语词汇“ultrabasic”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

　

单词	ultrabasic
释义	ultrabasic ul·tra·ba·sic U0010050 (ŭl′trə-bā′sĭk)adj. Containing magnesium and iron and only a very small amount of silica. Used of igneous rock. ultrabasic (ˌʌltrəˈbeɪsɪk) adj (Geological Science) (of such igneous rocks as peridotite) containing less than 45 per cent silica ul•tra•ba•sic (ˌʌl trəˈbeɪ sɪk) adj. (of rocks) containing iron and magnesium, with little or no silica. [1890–95] ultrabasic ultrabasic [¦əl·trə′bā·sik] (petrology) Of igneous rock, having a low silica content, as opposed to the higher silica contents of acidic, basic, and intermediate rocks.
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更新时间：2025/2/11 23:58:24