名词
中文翻译：辛烷值升级同义词
同义词：
['octane enhancement', 'octane boosting']
例句：
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1. The engine has undergone an octane upgrading to improve its performance.
这台发动机已经进行了辛烷值升级，以提升其性能。
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2. The fuel was upgraded to increase the engine's efficiency.
燃料被升级以提高发动机的效率。
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3. The manufacturer is working on a new technology that will enable octane upgrading for gasoline engines.
制造商正在研发新技术，这将为汽油发动机实现辛烷值升级。