The discussion focused on a couple of big issues of database design without getting into the details of query optimization and application considerations.
本文着重讨论了数据库设计的两个比较大的问题，而没有深入研究查询优化和应用程序考虑事项的细节。
Good design decisions and best practices in application design and implementation provide a sort of preoptimization by eliminating many of the coding issues that might have required optimization.
在应用程序设计和实现过程中应用良好的设计决策和最佳实践可以防止许多可能需要优化的编码问题，从而能够对应用程序执行预先优化。
The research in this thesis provides the valuable reference for the further research and application of big structural optimization design.
本文对大型结构优化设计的深入研究和应用提供了有价值的参考。
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