Also visible is a closer view of the condensationcloud or "pileus", formed by the rapidly rising plume.
也可以认为是一种更密切的凝结云或“伞菌”，形成了快速增长的羽毛。
2
A closer look at Sarychev Peak Volcano reveals more detail, the circular hole in the clouds around the island, the smooth condensationcloud wrapping much of the ash plume.
仔细看看火山山顶发现Sarychev更详细的圆孔中的云彩在岛上，顺利凝结云包装大部分灰羽。
3
A cloud is a condensation of water vapour in the atmosphere.