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BZ—12、BDZ—3载波机是我局电务部门使用比较普遍的一种设备,为了使电务职工加深对载频同步原理的理解,互相交流知识和提高技术理论水平,特请陈阿惠同志编写了以下资料,供有关同志工作中参考。
BZ-12 and BDZ-3 carrier machines are a kind of equipment commonly used by the service department of our bureau. In order to make the staff of telecommunication deepen their understanding of the principle of carrier frequency synchronization, exchange knowledge and improve the theoretical level of technology, The following information has been prepared for reference to the work of the comrades concerned.