More emphasis must be placed on the internal design and structure of the application, rather than merely achieving the external fulfillment of functional requirements.
应该更加关注内部设计以及程序的结构，而不仅仅是功能性需求的外部实现。
Analyze the hardware structure of functional modules and then design the relative hardware circuit.
分析了功能模块的硬件结构并设计相应的硬件电路。
Third, the author discussed the design of testing and booking module in functional structure model.
第三部分论述了系统功能结构模型中测试预约模块的设计。
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