overhead wire

简明释义

架空线路

英英释义

例句

1.The maintenance crew inspected the overhead wire for any signs of wear.

维护人员检查了架空电线是否有磨损迹象。

2.The train was delayed due to a problem with the overhead wire.

由于架空电线的问题，火车延误了。

3.The city is upgrading its overhead wire system for better efficiency.

该城市正在升级其架空电线系统，以提高效率。

4.Electricians were called to repair the damaged overhead wire after the storm.

暴风雨过后，电工被叫去修理受损的架空电线。

5.Children were warned not to play near the overhead wire for safety reasons.

出于安全原因，孩子们被警告不要在架空电线附近玩耍。

作文

The world we live in is filled with various forms of transportation, each relying on different technologies to ensure efficiency and safety. One such technology that plays a crucial role in the operation of electric trains and trams is the overhead wire. The overhead wire (架空电缆) is a system of wires suspended above the railway tracks, providing electrical power to trains and other vehicles that run on electricity. This system is essential for urban transit systems, where trains need a constant source of power to operate effectively.In many cities, the use of electric trains has become increasingly popular due to their efficiency and lower environmental impact compared to diesel-powered trains. The overhead wire system allows these trains to draw power without the need for heavy onboard batteries or fuel tanks. Instead, they utilize a pantograph, which is a device mounted on the roof of the train that makes contact with the overhead wire to receive electricity. This method of power supply not only reduces the weight of the train but also allows for faster acceleration and deceleration, making the overall travel experience smoother for passengers.Moreover, the overhead wire system is designed to be highly reliable. Engineers carefully calculate the tension and positioning of the wires to ensure that they remain stable and secure, even during adverse weather conditions. Regular maintenance is performed to check for wear and tear, ensuring that the overhead wire continues to function seamlessly. This reliability is crucial in urban areas where large numbers of commuters depend on public transport daily.However, the installation of overhead wire systems is not without challenges. Urban planners must consider various factors, including the aesthetics of the city, the potential impact on local wildlife, and the safety of pedestrians and cyclists. In some cases, cities have opted for underground systems to avoid the visual clutter created by overhead wires. Nonetheless, these alternatives can be significantly more expensive and complex to implement.In addition to trains, overhead wires are also used in other forms of electric transport, such as trolleybuses and certain types of trams. These vehicles utilize the same principle of drawing power from the overhead wire, making them an integral part of the public transportation infrastructure in many cities worldwide.As cities continue to grow and the demand for efficient public transport increases, the role of overhead wires will likely become even more significant. Innovations in technology may lead to improvements in the design and functionality of these systems, enhancing their reliability and reducing maintenance costs. Additionally, as sustainability becomes a priority for urban development, the reliance on electric-powered vehicles supported by overhead wires will contribute to cleaner air and reduced carbon footprints.In conclusion, the overhead wire system is a vital component of modern transportation networks, facilitating the movement of millions of people every day. Understanding its importance helps us appreciate the engineering feats behind our daily commutes and encourages us to support further advancements in sustainable transport solutions.

我们生活的世界充满了各种交通运输方式，每种方式都依赖不同的技术来确保效率和安全。其中一种在电动火车和有轨电车运行中发挥重要作用的技术是overhead wire。overhead wire（架空电缆）是一种悬挂在铁路轨道上方的电线系统，为电动火车和其他电力驱动的车辆提供电力。这一系统对于城市交通系统至关重要，因为火车需要持续的电源来有效运行。在许多城市，电动火车因其效率和相较于柴油动力火车的较低环境影响而变得越来越受欢迎。overhead wire系统使这些火车能够在不需要重型车载电池或燃料箱的情况下获取电力。相反，它们使用一种称为“受电弓”的装置，该装置安装在火车顶部，与overhead wire接触以接收电力。这种供电方式不仅减少了火车的重量，还允许更快的加速和减速，使乘客的整体旅行体验更加顺畅。此外，overhead wire系统设计得非常可靠。工程师们仔细计算电线的张力和位置，以确保它们在恶劣天气条件下也能保持稳定和安全。定期维护会检查磨损情况，确保overhead wire继续无缝运行。这种可靠性在城市地区至关重要，因为大量通勤者每天依赖公共交通。然而，安装overhead wire系统并非没有挑战。城市规划者必须考虑各种因素，包括城市的美观、对当地野生动物的潜在影响以及对行人和骑自行车者的安全。在某些情况下，城市选择地下系统以避免overhead wire所造成的视觉杂乱。然而，这些替代方案的实施成本可能显著更高且更复杂。除了火车，overhead wire还用于其他形式的电动交通工具，如无轨电车和某些类型的有轨电车。这些车辆利用与overhead wire相同的原理从中获取电力，使其成为全球许多城市公共交通基础设施的重要组成部分。随着城市的不断发展和对高效公共交通需求的增加，overhead wire的作用可能变得更加重要。技术创新可能会导致这些系统的设计和功能得到改善，从而增强其可靠性并降低维护成本。此外，随着可持续发展成为城市发展的优先事项，依赖于overhead wire支持的电动交通工具将有助于改善空气质量和减少碳足迹。总之，overhead wire系统是现代交通网络的重要组成部分，每天促进数百万人的出行。理解其重要性有助于我们欣赏日常通勤背后的工程成就，并鼓励我们支持可持续交通解决方案的进一步发展。