There are certain theoretical and practical significance on the comparison among the three Codes.
选择对对三者比较，有一定的理论和现实意义。
The mail processing center for modern operating systems of production and distribution center planning and design process has a certain theoretical and practical significance.
这对现代邮件处理中心生产作业系统及配送中心工艺流程的规划与设计方面，具有一定的理论意义和实际意义。
There research plans contain certain theoretical significance and practical value, which are worth using for reference.
这些研究方案具有一定的理论意义和实用价值，值得参考和借鉴。
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