volcanic glass

• n. [地]火山玻璃；松脂石

volcanic glass的英文翻译是什么意思，词典释义与在线翻译：

英英释义

Noun:

1. a kind of natural glass produced when molten lava cools very rapidly

volcanic glass的用法和样例：

例句

1. A usually black or banded, hard volcanic glass that displays shiny, curved surfaces when fractured and is formed by rapid cooling of lava.
   黑曜岩火山玻璃，一般为黑色，带状，摔碎时色泽光亮，表面变曲，由火山熔岩迅速凝而成