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本文基于改进型软件无线电提出新的多模终端结构，并对其软件、硬件和两通信系统软切换过程进行描述。
This paper, on the base of software radio technology, produces a new multi-mode architecture of software ra- dio, and discusses some issues on software, hardware and system soft handoff.
这种光纤能以有效的单模方式工作或以有效的多模方式工作，且这种光纤非常适用于高比特率通信系统中。
This kind of optical fiber can operate in single mode or multiple mode effectively, and is especially suitable for high-bit rate communication system.
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