retarc
名词 n.
英文释义
名词 n.
- A rubble mound occasionally formed by a powerful underground explosion (usually nuclear) in solid rock, due to the chimney of shattered rock above the explosion occupying a greater volume than the solid rock previously present.
词形变化
词源
From crater reversed, signifying the formation of an elevated mound rather than the typical sunken crater.
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数据来源: Wiktionary