gemological 怎么读,gemological 的音标和真人发音
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gemological是什么意思,gemological的意思是
gemological 的用法和双语例句“点击”或“选中”例句中的单词,就可以看到词义解释 The gemological application of ir reflectance spectroscopy and the identification system of ir spectra of gems , including a database of 318 spectra and a searching and identifying program , are described in this paper . 本文介绍红外反射光谱技术的宝石学应用和包含318个光谱的数据库以及检索、鉴定程序的宝石红外光谱鉴定系统。 The gemological institute of america recognizes two grades in the imperfect category . 美国的宝石学院确认两职类不完善. Mr. yang serves on the university of san diego business school board of advisors and gemological institute of america board of governors . 杨先生任职于圣迭戈大学商学院顾问委员会和美国宝石研究所理事会。 An independent , third-party gemstone grading report , such as from the gemological institute of america . 一份第三方独立宝石评级机构(比如美国宝石学院)的报告。 According to the gemological institute of america , up until 1896 , india was the only source of diamonds . 根据美国某某机构,直至1896年,印度是世界钻石的唯一来源。