| 单词 | 黑曜岩 |
| 释义 | 〔knap〕To break or chip (stone) with sharp blows, as in shaping flint or obsidian into tools.敲碎：用重击来撞碎或凿碎（石头），如把燧石或黑曜岩石制成工具〔perlite〕A natural volcanic glass similar to obsidian but having distinctive concentric cracks and a relatively high water content. In a fluffy heat-expanded form perlite is used as a lightweight aggregate, in fire-resistant insulation, and in soil for potted plants.珍珠岩：一种天然火山玻璃岩，类似于黑曜岩，但它有清晰的同轴裂纹和相对高的含水量。轻的热膨胀形珍珠岩可用作轻型建材，也可用于绝热材料和盆栽植物的土壤中〔Milos〕An island of southeast Greece in the Cyclades Islands of the Aegean Sea. It was a flourishing trade and obsidian-mining center in ancient times but lost importance when bronze replaced obsidian as a material for tools and weapons. The famous statueVenus de Milo was discovered here in 1820. 米洛斯岛：希腊东南部一岛屿，位于爱琴海的基克拉迪群岛。古时为一繁荣的贸易中心及黑曜岩采掘中心，但自青铜代替黑曜岩成为制造工具和武器的材料之后，该城逐渐没落。著名的《米洛斯岛的维纳斯》 雕像于1820年发现于此 〔obsidian〕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〔spherulite〕A small, usually spheroid body consisting of radiating crystals, found in obsidian and other glassy lava rocks.球粒：由放射状结晶构成的通常为球状的小粒，常见于黑曜岩及其他玻璃质的火山岩中 |
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