给出一种利用电力网传输时间信号的子母钟的设计方法。
The method to design master-servant clock linked with power-lines is given in his paper.
孩子之中比较最蠢，最懒，最刁，最泼，最丑，最弱，最不讨人喜欢的，往往最得父母钟爱。
The most silly, lazy, artful, shrewish, ugly, weak and unlikable child among all usually is most doted on by parents.
母钟设备可以采用光电隔离措施，保证不会因为外部输入信号的因素而对主机设备造成干扰和损害。
Master clock photoelectric isolation measures can be used to ensure that the input signal will not be because of factors external to the host and cause interference and damage equipment.
母钟设备可以采用光电隔离措施，保证不会因为外部输入信号的因素而对主机设备造成干扰和损害。
Master clock photoelectric isolation measures can be used to ensure that the input signal will not be because of factors external to the host and cause interference and damage equipment.
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