建立系统有效的二层步行系统，清晰表达立体空间的连接关系，以指导下层次详细工程设计与建设实施。
Design a systematic second-floor pedestrian system, the connection of the solid space should be stated clearly to indicate construction details for lower level.
文章提出了一种软件无线电系统中基带调制解调器的设计原理和实现方法，阐述了系统实现的关键硬件技术和系统详细工作工程。
It is proposed a design principle and method of the baseband QPSK modem in radio communication system with discussion about the key hardware technology and the detailed operating process of the modem.
文章提出了一种软件无线电系统中基带调制解调器的设计原理和实现方法，阐述了系统实现的关键硬件技术和系统详细工作工程。
It is proposed a design principle and method of the baseband QPSK modem in radio communication system with discussion about the key hardware technology and the detailed operating process of the modem.
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