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1·Yellowstone obviously was of this second type, but Christiansen couldn't find the caldera anywhere.

黄石公园显然属于第二种类型，但是克里斯蒂安森就是找不到这个火山口。

2·These volcanoes are so explosive that they burst open in a single big crack, leaving behind a vast hole, the caldera.

这些火山具有极强的爆发性，以至于在它们从一条大的裂缝中喷涌而出，留下了一个巨大的洞，也就是火山口。

3·The caldera was enlarged by later paroxysmal eruptions ending in the one of AD 79.

破火山口因后来的阵发性爆发而扩大，最终于公元79年一次爆发。

4·The caldera is considered an active volcano.

该破火山口被认为是活火山。

5·Meinstein said the harbor is the caldera of a volcano.

迈尔·斯泰恩说，港口是火山的一个喷口。

6·Finally, it is concluded that the crater lake is a caldera.

论证了大龙湾火山口湖为破火山口。

7·All the routes at the caldera are fitted out with timber flooring.

所有在火山口的路线，配备了木地板。

8·The caldera is 48 by 72 kilometers. And it remains an active volcano.

该火山口大小为48×72公里，它仍然处于活跃期。

9·The mountain is encircled by the doughnut-shaped depression of the caldera.

山为环形的破火山口洼地环抱着。

10·The mountain is encircled by the doughnut - shaped depression of the caldera.

山为环形的破火山口洼地环抱着。

破火山口

1·The caldera is considered an active volcano.

该破火山口被认为是活火山。

喷火山口

1·When the enormous magma chamber at Santorini finally collapsed to form the existing caldera, enormous tsunamis (tidal waves) spread outward in all directions.

圣多里尼火山的巨大岩浆房最后倒塌，形成了现有的喷火山口，巨大的海啸(潮汐波)向各个方面向外伸展。