At present, as a principle and technique it has penetrated into the modern music composing practice and theory research, with the quality and style of pentatone.
目前，作为一种原理和技法，已经渗透到了具有五声性风格的现代音乐创作实践及理论研究中。
The research to improve the data quality of CAD model in original modeling stage is very significative both on theory and on practice.
提高初始建模阶段CAD模型数据交换质量的研究具有较强的理论意义和实用价值。
So it is important doubtlessly both in theory and in practice to research on the economic running quality evaluation of the coal industry.
因此，进行煤炭经济运行质量评价研究，无疑具有重要的理论意义和实际价值。
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