The third part (the 6th and 7th chapters) is for a practical application, in which hollow laser beams have been analyzed and designed in terms of the matrix eigenvalue method.
第三部分（第六、七章）根据矩阵本征值方法分析和设计空心激光光束。
Teenagers from 72 countries or regions are part of the latest triennial analysis, which will be published on December 6th.
这个评估计划每三年举行一次，而最近一次的参与者是来自72个不同地区和国家的青少年，这次的测试结果将在11月6号公布。
The second part carry on the comprehensive music analysis to the 3rd, the 6th and the 9th symphony separately;
第二部分则对具有代表性的第三交响曲、第六交响曲和第九交响曲进行了全面的作品分析；
The second part carry on the comprehensive music analysis to the 3rd, the 6th and the 9th symphony separately;
第二部分则对具有代表性的第三交响曲、第六交响曲和第九交响曲进行了全面的作品分析；
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