have theoretical and practical significance 具有理论和实用价值
both theoretical and practical significance 具有重要的理论和实际意义
has theoretical and practical significance 具有理论与实践意义
great theoretical and practical significance 具有重大的理论和现实意义
certain theoretical and practical significance 一定的理论和实践意义
important theoretical and practical significance 重要的理论和实践意义
theoretical value and practical significance 理论价值和实践意义
It shows the theoretical and practical significance of the paper.
说明本研究的理论和实践意义。
And hence, it is of great theoretical and practical significance to study tax burden.
因此，研究税收负担具有重要的理论和实际意义。
The first part of this article focuses on topics of theoretical and practical significance.
第一部分重点阐述了本文选题的理论与实践意义。
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