以上来源于: WordNet
The protolith of marble is limestone.
大理岩的原岩为灰岩。
The age of the protolith of the Hong′an Group in Hubei has been a controversial issue.
湖北红安群的原岩形成时代一直是个有争议的问题。
The sedimentary principles and methods are employed to reconstruct the protolith and to analyse the genetic stratigraphy in middle Waitoushan Formation, Yindongpo.
运用沉积学的原理和方法,对银洞坡歪头山组中段含金绿片岩系进行了细致的原岩恢复和成因地层分析。
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