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提出一种新的短波自适应数据通信系统，介绍其基本组成和工作原理，着重描述系统的通信规程（HFX．25）和自适应过程，并分析其效率和可靠性。
A new shortwave adaptive data communication system is proposed. Its basic composition and working principle are introduced. The system communication protocol (HFX.25) and the adaptive process are mainly described, and its efficiency and reliability are analyzed.