11. so superbly placed that they bring into play, in memory of the dead monarchs, the entire volume contained within the mountain arc.

如此华丽的位置，以至于为了纪念死去的君主，它们将整个卷包含在山弧内。

That's big explosion excavates a pit, throws the material up on the outsides, so you have these rings of mountains, arcs of mountains, that surround the impact sites.

那是一个巨大的喷发陷坑，物体投掷在外面，所以会有环形山、弧形山包围着撞击的地点。