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- The temperature of volcanic gases is very high. 火山氣體的溫度很高。
- An agglomerate is a volcanic breccia. 集塊岩是一種火山性角礫石。
- The place was recently visited by a serious volcanic eruption. 這地方最近發生了一次嚴重的火山爆發。
- The phenomena associated with volcanic activity. 火山現象與火山活動有關的現象
- The waves beveled a volcanic island. 波濤徑直從一個火山島上翻騰過去。
- The French Revolution was a volcanic upheaval in European history. 法國大革命是歐洲歷史上的一次劇變。
- Basalt is the commonest volcanic rock. 玄武岩是最普通的火山岩。
- Pulverized particulate matter ejected by volcanic eruption. 火山灰火山爆發噴射出來的粉末狀顆粒物質
- Volcanic fissures cover the whole area. 火山縫隙覆蓋了整個地區。
- A large crater formed by volcanic explosion or by collapse of a volcanic cone. 火山口火山爆發而形成的環形山或大山核心部分的崩塌而形成的環形山
- We put the cage in one of the field's foci. 我們把籠子放在區域中的一個焦點處。
- The midpoint Between the foci is the center. 焦點之間的中點為中心。
- This is unlike volcanic activity above the sea. 這同高出洋麵的火山活動是不同的。
- A volcanic rock containing many amygdules. 杏仁岩有很多杏仁狀小氣孔的火成岩
- There they cool and harden into volcanic ash. 然後在空中它們又冷卻變成火山灰。
- It used to be a crater of a volcanic mount. 這曾經是一個火山口，
- Appears to have formed over the volcanic rubble. 火山熔岩表面似乎形成了一層硬殼。
- Volcanic eruptions are like fires in a chimney. 火山爆發就象煙囪里的火焰一樣。
- It was a real volcanic eruption? 是真的火山噴發了呢?
- The silence descends in volcanic chutes. 寂靜是乘著火山狀的降落傘降臨的。
