伟晶花岗岩是一种可以在堤防或静脉发现粗的类型。

Pegmatite is a coarse type of granite that can be found in dikes or veins.

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伟晶花岗岩是一种可以在堤防或静脉发现粗的类型。

Pegmatite is a coarse type of granite that can be found in dikes or veins.

youdao