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zgj:接收到50Hz的信号,不错,哈哈 (2013-02-11 17:55)
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bm2caj:示波器显示 59.9598Hz可见电力公司 50Hz / 60Hz 不准 (2013-02-11 19:07)
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魁北克回声旅馆:不靠谱。。。 (2013-02-11 19:30)
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内容来自Android手机客户端
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老干部:我家老的SMC微波炉,时钟就是靠电力50周的,每周要差1-5分钟,都是慢的。所以就断不校准,当它没这功能。可见(起码国内,本地)电力“周波数”是不准的。本地老情况是多个发电场环形供 .. (2013-02-13 22:30)