"Air-cooled"是指空气冷却，是一种为发动机或机器提供冷却的的方法。它通常用于冷却汽车发动机，因为这种冷却方法相对便宜且轻便。
以下是一篇关于空气冷却的英文范文：
Air-Cooled Engines: An Introduction and Historical Perspective
Air-cooled engines have been a staple in the automotive industry for decades. From humble beginnings in the early 20th century to the current state of the art in modern electric scooters, air-cooled engines have played a significant role in the evolution of the automotive industry.
The simplicity of air-cooling makes it a popular choice for small, lightweight engines. It doesn't require a complex water pump or radiator system, which translates to lower costs and less weight. Additionally, air-cooled engines are often easier to maintain and repair, making them a popular choice for budget-conscious buyers.
However, air-cooling has its limitations. The lack of a water-based cooling system limits the temperature that an engine can safely operate to. If the engine gets too hot, it can damage critical components, leading to premature wear and tear. Additionally, air-cooled engines tend to have a lower power-to-weight ratio compared to water-cooled engines, which can limit their performance capabilities.
Despite these limitations, air-cooled engines remain popular for a reason. They offer a cost-effective and reliable solution for small, lightweight vehicles that require a simple and efficient cooling system. As the automotive industry continues to evolve, we can expect to see more air-cooled engines being used in new and innovative ways.
air-cooled意思是风冷，是一种用来给空气冷却的散热方式，利用风扇将热的空气吹走，以降低物体的温度。
“air-cooled”是空气冷却的意思，是一种汽车发动机的冷却方式。它利用空气流来冷却发动机中的热量，使发动机在高温状态下冷却，以保证其正常工作。
至于“air-cooled英文范文最新变化”，很抱歉，我没有找到相关的信息。