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- ancient volcanic crater 古火山机构
- A flat-bottomed, roughly circular volcanic crater of explosive origin that is often filled with water. 小火山口一种底部平坦、大致呈圆形的火山爆发后形成的盛满水的低洼地
- Two explorers are silhouetted by the glow of lava in a volcanic crater. 火山口喷起的熔岩浆映出了两个探险者的身影.
- NASA's Mars Rover Finds Evidence of Ancient Volcanic Explosion? 古代火山大爆发?
- A flat-bottomed,roughly circular volcanic crater of explosive origin that is often filled with water. 小火山口一种底部平坦、大致呈圆形的火山爆发后形成的盛满水的低洼地
- A flat - bottomed, roughly circular volcanic crater of explosive origin that is often filled with water. 小火山口一种底部平坦、大致呈圆形的火山爆发后形成的盛满水的低洼地
- 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。
- Photograph by Carsten Peter Two explorers are silhouetted by the glow of lava in a volcanic crater. 火山口喷起的熔岩浆映出了两个探险者的身影.
- Taya Er Lake was originally formed by the volcanic crater lake, Lake has also formed a Taya Er volcano. 塔亚尔湖原是由火山口形成的火山湖，在湖中又形成了塔亚尔火山。
- Standing on a volcanic crater, even that of an extinct volcano, is very dangerous. 别看是死火山，站在火山口也是很危险的。
- These islands are actually the peaks of an ancient volcanic mountain range submerged by the sea. 马尔岱夫群岛实际上是被大海淹没的一个古老火山山脉的山峰群。
- It is a magnificent sublime wilderness where horizons are wide when they're not broken by the craggy splendour of an ancient volcanic landscape. 那是一幅广阔的野外的景象，那里有宽阔的地平线。还有一派火山一样的崎岖的壮观的景象，这并没有影响到地平线的壮观。
- Sugden, a geologist at the University of Edinburgh, was trying to date an ancient volcanic eruption in East Antarctica when he and his colleagues uncovered the old ice. 爱丁堡大学地质学家萨格登是在南极洲东部设法测定一次古老的火山爆发的年代时与其同事发现的那段古老的冰层。
- Sugden, a geologist at the University of Edinburgh, was trying to date an ancient volcanic eruption in East Antarctica when he and his colleague uncovered the old ice. 爱丁堡大学地质学家苏格丹，与他的同事们在南极东部揭开古冰层时，就试图去测定南极东部某次古代火山喷发的年代。
- With regard to the genesis of perlite deposits, it is considered conventionally that "perlite is a glassy rock which is formed by rapid cooling of the acidic lava erupted from volcanic crater". 但关于珍珠岩矿床的成因,习惯认为:“珍珠岩是由火山口喷发的酸性熔岩,经急速冷却而成的玻璃质岩石。”
- Sugden, a geologist at the University of Edingburgh, was trying to date an ancient volcanic eruption in East Antarctica when he and his colleague uncovered the old ice. 瑟顿是爱丁堡大学的一名地质学家，他和他的同事揭开了古冰层，并正试图确定南极洲东部的一座古火山的爆发时间。
- Flames blazed out from the crater of the volcano. 火焰从火山口猛烈地喷出来。
- A large crater formed by volcanic explosion or by collapse of a volcanic cone. 火山口火山爆发而形成的环形山或大山核心部分的崩塌而形成的环形山
- My inn had once been a part of an ancient ecclesiastical house. 我的客栈曾经是一个古老教会的房子的一部分。
- The law provides that these ancient buildings must be preserved. 法律规定，这些古老的建筑应该保存。
