英语词汇sign changer是什么意思，sign changer的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	sign changer
释义	sign changer　【计】符号变换器
随便看	pregravidic pregreasing group contactor pregreasing pump pregrounding pregroup pregrouting pregummed paper prehabilitation prehallux prehalteres preharden prehardening prehardening reaction preharmonic preharvest preharvest prehaustorium preheat preheat preheat preheat preheat burner preheat current preheat fluorescent lamp preheat hot cathode lamp

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