通常在天气晴好时，人们沿着火山口走到位于火山最高点的气象站，也有人到山顶邮局去寄出明信片。
On a clear day it is customary to walk around the crater to the weather station that marks the volcano's highest point. Some send postcards from the summit post office.
三个火山口形成的深湖位于克丽穆图(Keli Mutu)东面的山顶上。
Three crater lakes are located on the eastern summit of Keli Mutu.
火山顶部的冰川融水流进了火山口，冷却了岩浆，随后来自底部的压力造成了爆炸。
The meltwater from the glacier on top of the volcano ran down into the crater, chilling the magma and then the pressure from underneath caused an explosion.
山顶有小圆形火山口，直径大约1千米，周围是80到300米高的墙（喷发岩形成的）。
A small circular caldera crowns the volcano. A little more than a kilometer across, the caldera is defined by walls that range from 80 to 300 meters high.
基拉韦厄火山山顶上有一个巨大的火山口，直径4027米，深130余米，其中包含许多小火山口。
There's a huge caldera in Kilauea's peak, 4027 meters diameter, more than 130 meters deep, which contains many little calderas.
游客蜂拥着去印尼爪哇岛是为了亲眼目睹壮观的卡瓦伊真火山——但他们从未想过能够在火山顶上看到这蓝绿交加的火山口湖。
Travellers flock to the Indonesian island of Java to see the magnificent Kawah Ijen volcano - but what they don't expect to find is the stunning turquoise-hued caldera lake at the volcano's summit.
阿拉斯加，蒸汽从山顶上的火山口喷发。
Alaska - Steam rises from the top vent in the summit crater of Mount Redoubt.
它的轮廓非常鲜明：缓缓上升的斜坡引向一长长的、扁平的山顶，那是一个真正的巨型火山口——一个盆状的火山峰顶。
It is striking: the outline of the outline of the slope rises slowly to a long, flat top of the mountain, it is really a giant crater-a basin of volcanic summit.
另外两人攀下火山口去收集供日后研究用的岩浆，我是第二次经历这样的事，所以留在山顶上观察他们。
The other two climbed down into the crater to collect some lava for later study, but this being my first experience, I stayed at the top and watched them.
另外两人爬下火山口去收集供日后研究用的岩浆，我是第一次经历这样的事，所以留在山顶上观察他们。 。
Thee other two climbed down into the crater to collect some lava for later study, but this being my first experience, _I stayed at the top and watched them.
另外两人攀下火山口去收集供日后研究用的岩浆，我是第一次经历这样的事，所以留在山顶上观察他们。
The other two climbed down into the crater to collect some lava for later study, but this being my first experience, I stayed at the top and watched them.
另外两个人攀下火山口去收集日后研究用的岩浆，我是第一次经历这样的事，所以留在山顶上观察他们。
The other two climbed into the crater to collect some lava for late study, but this being my first experience, I stayed at the top and watched them.
另外两人爬下火山口去收集供日后研究用的岩浆，我是第一次经历这样的事，所以留在山顶上观察他们。
The other two climbed down into the crater to collect some lava for later study, but this_being_my_first_experience, _I stayed at the top and watched them.
另外两人爬下火山口去收集供日后研究用的岩浆，我是第一次经历这样的事，所以留在山顶上观察他们。
The other two climbed down into the crater to collect some lava for later study, but this_being_my_first_experience, _I stayed at the top and watched them.
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