Research on the origin and occurrence of gems and jades is one of the hottest topic in geology, gemmology and archaeology.
摘要宝玉石产地来源的研究是地质学、宝石学和考古学界的热门话之一。
Research on the origin and occurrence of gems and jades is one of the hottest topic in geology, gemmology and archaeology.
摘要宝玉石产地来源的研究是地质学、宝石学和考古学界的热门话之一。
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