在花岗岩及有关的岩石中，碱质当然显著地超过铁镁组分。

In the granites and related rocks the alkalis are, of course, noticeably in excess of the femic constituents.

youdao

在花岗岩及有关的岩石中，碱质当然显著地超过铁镁组分。

In the granites and related rocks the alkalis are, of course, noticeably in excess of the femic constituents.

youdao