And in fact two liquid columns were rising to a considerable height above the sea.

事实上，有两个液柱正在上升到海平面以上相当高的高度。

The liquid column had indeed disappeared, to give place to dense and still boiling eruptive matter of all kinds.

液柱确实消失了，取而代之的是各种致密且仍在沸腾的喷发物质。