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。
Researching the applications of neural network techniques in the area of microwave circuits CAD and optimization design is one of the front edge issues in nonlinear microwave electronics domains.
神经网络在微波电路CAD和微波电路优化中的应用是目前非线性微波电路研究领域中的前沿课题之一。
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