antiknock agent

简明释义

抗爆剂

英英释义

例句

1.In the past, tetraethyl lead was a common antiknock agent used in fuels.

在过去，四乙基铅是一种常用的燃料抗爆剂。

2.The use of an antiknock agent can reduce engine wear and tear over time.

使用抗爆剂可以减少发动机的磨损。

3.Many modern gasoline blends contain an antiknock agent to enhance engine efficiency.

许多现代汽油混合物中含有抗爆剂以提高发动机效率。

4.Some manufacturers are exploring alternative antiknock agents that are more environmentally friendly.

一些制造商正在探索更环保的替代抗爆剂。

5.The addition of an antiknock agent improves the fuel's performance by preventing knocking.

添加抗爆剂可以通过防止敲击来提高燃料的性能。

作文

The term antiknock agent refers to a substance that is added to fuels, especially gasoline, to prevent knocking during combustion. Knocking, or pre-ignition, occurs when the air-fuel mixture in an engine's cylinder ignites prematurely, leading to inefficient engine performance and potential damage. The use of antiknock agents has been crucial in enhancing the efficiency and longevity of internal combustion engines. One of the most well-known antiknock agents is tetraethyl lead, which was widely used in the past but has since been phased out due to environmental concerns. Modern alternatives include compounds like ethanol and various oxygenates that provide similar benefits without the harmful effects associated with lead. In the early days of the automotive industry, engineers faced significant challenges in optimizing engine performance. The introduction of antiknock agents revolutionized the way engines operated, allowing for higher compression ratios and improved power output. This advancement not only made vehicles more powerful but also contributed to better fuel economy. As a result, the development and incorporation of antiknock agents have played a vital role in shaping the automotive landscape. However, the environmental impact of certain antiknock agents cannot be overlooked. The phase-out of leaded gasoline was a necessary step toward reducing air pollution and protecting public health. Today, the focus is on finding sustainable and eco-friendly alternatives that can maintain engine performance while minimizing environmental harm. Research continues into various organic and inorganic compounds that can serve as effective antiknock agents, as well as the potential for biofuels derived from renewable resources. In conclusion, the importance of antiknock agents in the history of automotive engineering cannot be understated. They have been instrumental in improving engine performance, efficiency, and longevity. As we move forward, it is essential to balance the need for high-performance fuels with the imperative of protecting our environment. The future of antiknock agents lies in innovation and sustainability, ensuring that we can enjoy the benefits of modern engines without compromising the health of our planet.

“抗爆剂”是指添加到燃料（尤其是汽油）中的一种物质，用于防止燃烧过程中的爆震。爆震或预点火发生在发动机气缸内的空气-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坏。使用抗爆剂对于提高内燃机的效率和寿命至关重要。其中最著名的抗爆剂是四乙基铅，曾广泛使用，但由于环境问题而逐渐被淘汰。现代替代品包括乙醇和各种氧化物，它们提供类似的好处，而没有铅所带来的有害影响。在汽车工业的早期，工程师面临着优化发动机性能的重大挑战。抗爆剂的引入彻底改变了发动机的工作方式，使得更高的压缩比和更好的功率输出成为可能。这一进步不仅使车辆更强大，还促进了更好的燃油经济性。因此，抗爆剂的发展和应用在塑造汽车领域方面发挥了至关重要的作用。然而，某些抗爆剂对环境的影响不容忽视。无铅汽油的淘汰是减少空气污染和保护公共健康的必要步骤。如今，重点是在寻找可持续和环保的替代品，以保持发动机性能，同时尽量减少对环境的危害。研究仍在继续，探索各种有机和无机化合物作为有效的抗爆剂，以及利用可再生资源生产生物燃料的潜力。总之，抗爆剂在汽车工程历史中的重要性不容小觑。它们在提高发动机性能、效率和寿命方面发挥了重要作用。随着我们向前发展，平衡高性能燃料的需求与保护环境的必要性至关重要。未来的抗爆剂将依赖于创新和可持续性，确保我们可以享受现代发动机的好处，而不妨碍地球的健康。