crater

特殊用法adventive crater1.寄生火山口arc crater1.电弧陷口bowl crater1.【天】碗形环形山contiguous crater1.【天】相接环形山drip crater1.锡滴坑(浮法玻璃缺陷)explosion crater1.爆裂火山口lunar crater1.(月面)环形山meteorite crater1.陨石坑; 陨星坑rill crater1.【天】沟纹环形山saucer crater1.【天】碟形环形山settlement crater1.沉陷坑weld crater1.熔池
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