名词
中文翻译：变压器效率
同义词：
['transformer efficiency', 'transformer efficiency factor']
例句：
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1.The new transformer has a higher efficiency than the old one.
新型变压器的效率比旧型高。
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2. The efficiency of the new design is much better than that of the old one.
新设计的效率高于旧设计。
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3. The efficiency of the new machine is twice as high as that of the old one.
新机器的效率是旧机器的两倍。