英语词汇productive unit是什么意思，productive unit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	productive unit
释义	productive unit　研究单位
随便看	separate trial separate trimming separate ventilation separate volume separate volume separate votes separate waveguide separate wheat from chaff separated separated separated separated separated casting separated clock separated code separated convex set separated data separated debate separated examination separated flow separated graphics separated joint owner separated kernel separated lift separated manager

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