unleaded

简明释义

英[ˌʌnˈledɪd]美[ˌʌnˈledɪd]

adj. 无铅的；不包铅的；不插铅条的

英英释义

单词用法

同义词

反义词

例句

1.In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation worldwide has decreased significantly.

在《清洁空气法案》强制要求美国使用无铅气体的二十年里，铅在世界范围内的累积量显著下降。

2.In fact, when I went to lunch this weekend and ordered the sea bass, they asked if I wanted it regular or unleaded.

事实上，周末我去餐馆吃中饭，点了鲈鱼，他们问我，是喜欢普通的还是无铅的。

3.All new cars, too, are built so that they can only take unleaded gas.

同时，所有的新型车都只能加无铅汽油。

4.Yeah, please. Uh, regular, unleaded . . . Oh, and can you check the oil? Do you have a restroom?

对。请做例行检查…噢，你能再检查一下机油吗？这有卫生间吗？

5.All new cars take unleaded petrol.

所有的新汽车都加无铅汽油。

6.In a study published in the journal Ambio, scientists found that lead levels in soil in the North-eastern United States had decreased markedly since the introduction of unleaded gasoline.

在《人类环境杂志》上发表的一项研究称，科学家们发现，自引进无铅汽油以来，美国东北部土壤中的铅含量已经显著下降。

7.Using unleaded fuel can help extend the life of your engine.

使用无铅燃料可以帮助延长发动机的使用寿命。

8.The car manufacturer recommends using unleaded gasoline for optimal performance.

汽车制造商建议使用无铅汽油以获得最佳性能。

9.You should always check if the fuel is unleaded before filling up your tank.

在加油之前，你应该始终检查燃料是否是无铅的。

10.Many gas stations now offer unleaded fuel to reduce pollution.

许多加油站现在提供无铅燃料以减少污染。

11.Some older vehicles may require leaded fuel instead of unleaded.

一些旧车型可能需要铅汽油而不是无铅汽油。

作文

In today's world, the importance of using environmentally friendly products cannot be overstated. One such product that has gained significant attention over the years is unleaded fuel. The term unleaded refers to gasoline that does not contain lead compounds, which were once commonly used as an additive to improve engine performance. However, the harmful effects of lead on human health and the environment led to a shift towards using unleaded alternatives. This transition has had profound implications for both public health and environmental sustainability.The history of leaded fuel dates back to the early 20th century when it was introduced to enhance the octane rating of gasoline. It allowed engines to run more smoothly and efficiently. However, as research began to uncover the detrimental effects of lead exposure, particularly in children, the need for change became apparent. Lead exposure has been linked to various health issues, including cognitive impairments and developmental delays. As awareness grew, many countries started to phase out leaded gasoline in favor of unleaded options.The introduction of unleaded fuel marked a significant milestone in the automotive industry. Not only did it reduce the amount of lead released into the atmosphere, but it also paved the way for the development of cleaner-burning fuels. The transition to unleaded gasoline was not without its challenges; it required modifications to existing engines and infrastructure. However, the long-term benefits far outweighed the initial hurdles.Today, unleaded fuel is the standard in most parts of the world, contributing to improved air quality and a reduction in health risks associated with lead exposure. The move towards unleaded fuel has also encouraged the exploration of alternative energy sources, such as electric and hybrid vehicles. These innovations further demonstrate the ongoing commitment to reducing our carbon footprint and protecting the planet.Moreover, the impact of choosing unleaded fuel extends beyond individual health. It plays a crucial role in combating climate change. By reducing harmful emissions, unleaded fuel helps mitigate the effects of global warming. This is particularly important as we face increasing environmental challenges, such as rising sea levels and extreme weather events.In conclusion, the shift from leaded to unleaded fuel is a testament to the progress we can achieve when we prioritize health and environmental sustainability. The term unleaded has become synonymous with cleaner energy and a healthier future. As consumers, it is our responsibility to continue supporting initiatives that promote the use of unleaded products and advocate for policies that protect our environment. By making informed choices, we can contribute to a cleaner, greener planet for generations to come.

在当今世界，使用环保产品的重要性不容低估。其中一种近年来备受关注的产品是无铅燃料。术语无铅指的是不含铅化合物的汽油，这些化合物曾被普遍用作添加剂以提高发动机性能。然而，铅对人类健康和环境的有害影响促使人们转向使用无铅替代品。这一转变对公共健康和环境可持续性产生了深远的影响。铅汽油的历史可以追溯到20世纪初，当时它被引入以提高汽油的辛烷值。这使得发动机能够更平稳、高效地运行。然而，随着研究开始揭示铅暴露的危害，特别是在儿童中，变革的必要性变得显而易见。铅暴露与各种健康问题相关，包括认知障碍和发育迟缓。随着意识的增强，许多国家开始逐步淘汰铅汽油，转向无铅选项。无铅燃料的引入标志着汽车工业的一个重要里程碑。它不仅减少了释放到大气中的铅量，同时也为开发更清洁燃烧的燃料铺平了道路。向无铅汽油的过渡并非没有挑战；这需要对现有发动机和基础设施进行改造。然而，长期利益远远超过了最初的障碍。如今，无铅燃料在世界大多数地区已成为标准，促进了空气质量的改善，并降低了与铅暴露相关的健康风险。向无铅燃料的转变还鼓励了对替代能源的探索，例如电动车和混合动力车。这些创新进一步证明了我们减少碳足迹和保护地球的持续承诺。此外，选择无铅燃料的影响不仅限于个人健康。它在应对气候变化方面发挥着至关重要的作用。通过减少有害排放，无铅燃料有助于减缓全球变暖的影响。这一点尤为重要，因为我们面临着日益严重的环境挑战，如海平面上升和极端天气事件。总之，从铅燃料到无铅燃料的转变证明了当我们优先考虑健康和环境可持续性时，我们可以取得的进展。术语无铅已成为清洁能源和健康未来的代名词。作为消费者，我们有责任继续支持促进使用无铅产品的倡议，并倡导保护我们环境的政策。通过做出明智的选择，我们可以为后代贡献一个更清洁、更绿色的星球。