octane number

简明释义

辛烷值

英英释义

例句

1.The higher the octane number (辛烷值), the more compression the fuel can withstand before detonating.

辛烷值越高，燃料在爆炸前能承受的压缩越大。

2.Using fuel with a low octane number (辛烷值) can lead to engine knocking.

使用低辛烷值的燃料可能会导致发动机敲击。

3.Many sports cars require high octane number (辛烷值) fuel for optimal performance.

许多跑车需要高辛烷值燃料以获得最佳性能。

4.A fuel's octane number (辛烷值) indicates its ability to resist knocking during combustion.

燃料的辛烷值表示其在燃烧过程中抵抗敲击的能力。

5.You should always check the recommended octane number (辛烷值) for your vehicle in the owner's manual.

您应始终检查车辆用户手册中推荐的辛烷值。

作文

The importance of fuel quality in modern engines cannot be overstated. Among various properties that define fuel performance, the octane number stands out as a critical measure. The octane number, or '辛烷值' in Chinese, indicates a fuel's ability to resist knocking during combustion. Knocking occurs when the air-fuel mixture in an engine cylinder ignites prematurely, leading to inefficient engine performance and potential damage. Therefore, understanding the octane number is essential for both manufacturers and consumers of automotive fuel.In essence, the octane number is a standard measurement that helps determine how well a fuel can withstand compression before igniting. Fuels with a higher octane number can resist knocking more effectively than those with a lower rating. For example, premium gasoline typically has an octane number of 91 or higher, while regular gasoline might have an octane number around 87. This difference can significantly impact engine performance, especially in high-performance vehicles designed to operate on higher-octane fuels.Engines are designed with specific compression ratios, which dictate the optimal octane number required for efficient operation. If a vehicle is fueled with a gasoline that has a lower octane number than recommended, it may experience knocking, leading to reduced power output and increased wear over time. Conversely, using a fuel with a higher octane number than necessary does not enhance performance; it merely adds unnecessary cost without benefits.The role of the octane number extends beyond just performance; it also impacts emissions. Engines that knock tend to produce more pollutants, as the combustion process becomes less efficient. By using fuels with the appropriate octane number, drivers can contribute to cleaner air by reducing harmful emissions. Moreover, many modern engines are equipped with technology that allows them to adjust their operation based on the fuel's octane number, optimizing performance and efficiency accordingly.In conclusion, the octane number is a vital aspect of fuel quality that directly influences engine performance, efficiency, and environmental impact. As consumers, understanding the significance of the octane number can help us make informed decisions about the fuels we use in our vehicles. By selecting the appropriate fuel with the correct octane number, we can ensure our engines run smoothly, efficiently, and with minimal environmental impact. Therefore, the next time you fill up your tank, consider the octane number and its implications for your vehicle's performance and longevity.

现代发动机中燃料质量的重要性不容小觑。在定义燃料性能的各种属性中，octane number（辛烷值）作为一个关键指标脱颖而出。octane number表示燃料抵抗点火爆震的能力。点火爆震发生在发动机气缸内空气与燃料混合物过早点燃时，导致发动机性能低效并可能造成损害。因此，理解octane number对汽车燃料的制造商和消费者至关重要。本质上，octane number是一个标准测量，帮助确定燃料在点燃前抵抗压缩的能力。具有较高octane number的燃料能够比那些较低评级的燃料更有效地抵抗爆震。例如，优质汽油的octane number通常为91或更高，而普通汽油的octane number可能在87左右。这种差异可以显著影响发动机性能，尤其是在设计用于高辛烷值燃料的高性能车辆中。发动机根据特定的压缩比设计，这决定了高效运转所需的最佳octane number。如果车辆使用的汽油的octane number低于推荐值，可能会出现爆震，导致功率输出降低并且磨损增加。相反，使用一个高于必要的燃料的octane number不会提高性能；它只是增加了不必要的成本，而没有好处。octane number的作用不仅限于性能；它还影响排放。爆震的发动机往往会产生更多污染物，因为燃烧过程变得低效。通过使用适当octane number的燃料，驾驶者可以通过减少有害排放来贡献于清洁空气。此外，许多现代发动机配备了技术，使其能够根据燃料的octane number调整操作，从而优化性能和效率。总之，octane number是燃料质量的一个重要方面，直接影响发动机性能、效率和环境影响。作为消费者，理解octane number的重要性可以帮助我们对使用的燃料做出明智的选择。通过选择具有正确octane number的适当燃料，我们可以确保我们的发动机平稳、高效地运行，并对环境影响最小。因此，下次您加油时，请考虑octane number及其对您车辆性能和使用寿命的影响。