英语词汇“average igneous rock”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	average igneous rock
释义	average igneous rock average igneous rock [′av·rij ′ig·nē·əs ′räk] (petrology) A hypothetical rock whose composition is thought to be similar to the average chemical composition of the outermost 10-mile (16-kilometer) shell of the earth.
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