火山口

Men clean their home of ashes from the Pacaya volcano, some 50 km (31 miles) south of Guatemala City, in Las Calderas, San Vicente Pacaya, Guatemala.

AFP / Getty Images / Johan Ordonez 男子从清洁的帕卡亚火山灰烬的家，约50公里（31英里）危地马拉危地马拉城南部，在拉斯维加斯火山口，圣维森特帕卡亚。

As pantellerite can be used as important evidence for the existence of crater, it has an important significance in improving the efficiency of gas exploration and development in volcanic rock areas.

碱流岩可以作为确定火山口存在的重要标志之一，它的确定对提高深层火山岩天然气勘探开发的效率具有重要的指示意义。

As the late evolutionary stage product of alkali-rich magma, pantellerite is always accumulated near the volcanic crater due to its high viscosity and poor mobility.

碱流岩是富碱岩浆演化晚期的产物，岩浆喷发到地表时粘度大，流动性差，往往堆积在火山口附近。

Results: The cultured chondrocytes were polygonal cells. There were many rough endoplasmic reticula and mitochondria in cytoplasm, and a lot of secretory vesicles under cell membrane and in the cytoplasm. When cultured for 10 days, some small and white nodules were formed on the bottom of the culture dished, and volcanic-mouth-like structures were formed when cultured for 20 days. Both these nodules and structures contained GAG-positive substances were demonstrated by safranine-O staining.

结果：体外培养的软骨细胞为多角形，透射电镜下见胞浆内有丰富的粗面内质网系统及线粒体，胞膜下及胞浆中有较多分泌泡；连续培养10天时，培养瓶底部出现肉眼可见的白色结节，蕃红-O染色显示白色结节含大量氨基葡聚糖阳性物质，20天时形成火山口样结构，也被蕃红-O染成深红色。

Shasta from the crater of another volcano.

从另一个火山口看到的Mt。

A young silverback mountain gorilla poses on the rim of a volcanic crater with a lake below in the background.

一只年轻的银背山地大猩猩在火山口的边缘摆了个造型，它的背后是一潭湖水。

A young silverback mountain gorilla poses on the rim of a volcanic crater with a lake below in the background.

一头年轻的银背山地大猩猩在背景中这个火山口湖的边缘被拍到。

A young silverback mountain gorilla poses on the rim of a volcanic crater with a lake below in the background.

一只年轻的银背山地大猩猩在火山口的边缘摆了个造型，背后是一片湖水。

A young silverback mountain gorilla poses on the rim of a volcanic crater with a lake below in the background.

一只尚属幼年的银背大猩猩正站在火山口上，直视镜头，身后是一汪湖水。

A young silverback mountain gorilla poses on the rim of a volcanic crater with a lake below in the background.

一头年轻的银背山猩猩在背景后这个火山口湖的边缘展示雄威。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。