rock formation

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  • na.岩层
  • Web岩系;探索到厚厚岩层;重现岩石形成过程
na.
1.
岩层

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Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard