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n.赫，赫兹（频率单位）；周秒； 英英释义： hertz[ hə:ts ]n.the unit of frequency; one hertz has a periodic interval of one second同义词：Hzcycle per secondcycles/secondcpscycleGerman physicist who was the first to produce electromagnetic waves artificially (1857-1894)同义词：Heinric
