“岩脉”造句

边界清楚的岩脉, 岩床及岩瘤等都常见.
Sharply outlined dikes, sills and bosses occur in numbers.

岩脉总体型式可以作理论模似.
The gross pattern of dikes can be duplicated theoretically.

这是与小岩脉群有关的准经济意义的矿化.
This is subeconomic mineralization related to minor dyke swarms.

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