单词：rapakivi
[网络] 奥环斑花岗岩；奥长环斑花岗岩；更长环斑花岗岩
rapakivi的用法和样例：
例句
- Rapakivi is a special rock in Precambrian.环斑花岗岩是发育于前寒武纪的一种特殊岩石。
- The rapakivi granites have a number of petrological peculiarities.环斑花岗岩具有若干岩石学的特征。
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