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介绍了ＺＰ８９型多信息集成化林频自动闭塞系统的主要技术性能及基本原理，指出了它的突出特点，即增加了信息量，提高了频率的稳定性，可实现发送电压自动调整。
The main technical performance and basic principle of the ZP89 multi-information integrated Lin-frequency automatic blocking system are introduced. The outstanding features of the ZP89 multi-information integrated linf automatic blocking system are pointed out, namely increasing the amount of information, improving the stability of the frequency and automatically adjusting the sending voltage.