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

单词	useful output
释义	DEFINITIVE EXAMPLES 权威例句〔efficiency〕The ratio of the effective or useful output to the total input in any system.效率：在某一系统中有效的或有用的产出与总投入的比率美国传统
随便看	be sick at be sick at heart be sick for be sick for be sick from be sick in the car be sick of be sick of be sick of doing nothing be sick to death be sick to death of be sick with be sick with be sickened of be sickening for something be significant of be silent about be similar to be similar to be sitting pretty be sitting pretty be six of one and half a dozen of the other be skilled at be skilled in be skilled in

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