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five level start-stop operation

英 [faɪv ˈlevl stɑːt stɒp ˌɒpəˈreɪʃn] 美 [faɪv ˈlevl stɑːrt stɑːp ˌɑːpəˈreɪʃn]

【计】五单位起-停操作

计算机

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