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给出了一种利用单片微机８０３１和集成实时时钟芯片ＭＣ１４６８１８控制的巨型石英钟的电路结构图以及部分程序流图．
A circuit diagram and a partial program flow diagram of a giant quartz clock controlled by a single chip microcomputer 8031 and an integrated real-time clock chip MC146818 are given.