英语语法分析

The application principles and methods are demonstrated of nuclear radiation technique in gemmology.

阐述了核辐照技术在宝石学中的应用原理和方法。

Research on the origin and occurrence of gems and jades is one of the hottest topic in geology, gemmology and archaeology.

宝玉石产地来源的研究是近几年地质学、宝石学和考古学界的热门话题之一。