名词
中文翻译：无铅汽油辛烷值
同义词：
['unleaded octane number', 'unleaded gasoline octane rating']
例句：
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1. The new car has a high unblended octane number, making it ideal for city driving.
这款新车具有高无铅辛烷值，非常适合城市驾驶。
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2. The fuel quality is crucial for the performance of the engine. The unblended octane number is an important indicator.
燃料质量对发动机的性能至关重要。无铅辛烷值是一个重要的指标。
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3. The unblended octane number of the fuel is higher than that of the standard gasoline, which means it can provide better combustion efficiency.
该燃料的无铅辛烷值高于普通汽油，这意味着它可以提供更好的燃烧效率。