The spectral analysis techniques have been applied to the gemological study and gemstone identification.波谱分析技术已被成功地应用于宝石学研究和宝石鉴定领域.The gemstone is 28.6 millimetres high and weighs 139.43 carats.这块宝石高28.6毫米,重139.43克拉。He b...
通过XRD和SEM微观测试手段, 研究了粘土-硅质石屑 - 水泥-石灰体系水热合成硬化体组成的微观结构.Through XRD and the SEM microscopic test method, the microstructure of hydro - thermal synthesis hardening has studied....
一些分析家认为，他的这一政治举措很高明。Some analysts believe he has made a canny political manoeuvre.很多分析家认为美元走势坚挺。Many analysts think the dollar is on an uptrend.分析家担心情况比领导层承认的还要糟。Analysts fear the situation is even worse than the leaders...