名词
中文翻译：总效率
同义词：
['overall efficiency', 'overall effectiveness']
例句：
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1. The new machine has atotal efficiency of 90%.
这台新机器的总效率为90%。
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2.The company's overall efficiency has improvedsignificantly since the reform.
自改革以来，该公司的整体效率显著提高。
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3. Theteacher's overall efficiencyin teaching is well-received by students.
这位老师在教学方面的整体效率受到学生的一致好评。