A large and indistinct body of solid earth materials, containing features on the scale of jointing, folding, schistosity, etc. The term would not be used to describe a rock only the size of a hand specimen.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。