volcanic vent

基本解释

To cause(molten lava)to pour forth from a volcanic vent.
使（巖漿等）噴出使（熔巖）流出火山口。
There is a buried volcanic vent of 10000 years old in the Xiaoshan district, whi ch is formed by tuffs resulting from multistage eruptions. This district was once a bay.
小山區域有距今1萬餘年前的掩埋火山口，小山的巖性爲多期噴發的凝灰巖組成。
They have both the flooding and the intrusive lithofacies but also have the volcanic and the volcano vent lithofacies and the lithology is mainly the middle acidic intrusive rocks.
既有溢流相，又有侵入巖相，還有次火山巖相和火山通道相；巖性主要以中酸性侵入巖爲主。

Its surface is no more unpleasant than the inside of a volcanic vent, where bacteria thrive.
NEWYORKER: The Martian Chroniclers