名词
中文翻译：能量系数同义词
同义词：
['energy ratio', 'efficiency coefficient']
例句：
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1. The energy coefficient of the new engine is significantly higher than that of the old one.
新发动机的能量系数显著高于旧的。
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2. The efficiency coefficient of this machine is very high, which means it can work more efficiently.
这台机器的效率系数非常高，意味着它可以更有效地工作。
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3. The energy coefficient of solar panels has been greatly improved in recent years.
近年来太阳能电池板的能量系数得到了极大的提高。