lift bridge

简明释义

升降桥

英英释义

例句

1.The boat had to wait for the lift bridge 升降桥 to open before it could pass.

船只必须等到升降桥 lift bridge打开才能通过。

2.The city has several lift bridges 升降桥 that connect the two sides of the river.

这座城市有几座升降桥 lift bridges连接河的两岸。

3.We watched as the lift bridge 升降桥 slowly ascended to let the cargo ship through.

我们看着升降桥 lift bridge慢慢升起，让货船通过。

4.The maintenance crew was inspecting the lift bridge 升降桥 for any mechanical issues.

维护人员正在检查升降桥 lift bridge是否有机械故障。

5.During rush hour, the lift bridge 升降桥 can cause significant delays for drivers.

在高峰时段，升降桥 lift bridge可能会导致司机严重延误。

作文

A lift bridge is a remarkable engineering structure that serves a vital purpose in modern transportation. These bridges, also known as drawbridges, are designed to allow boats and ships to pass through while still providing a pathway for vehicles and pedestrians. The mechanism of a lift bridge involves raising the bridge deck vertically, creating an opening for vessels to navigate beneath. This dual functionality makes lift bridges essential in areas where waterways intersect with roadways.The history of lift bridges dates back several centuries, with their design evolving over time. Early versions were often manually operated, requiring considerable effort from workers to raise and lower the bridge. However, advancements in technology have led to the development of automated systems that can operate with the push of a button. This modernization has not only improved efficiency but also enhanced safety for both vehicles and marine traffic.One of the most famous lift bridges in the world is the Tower Bridge in London. Completed in 1894, this iconic structure features two towers connected by walkways and a central span that can be lifted to allow ships to pass. The Tower Bridge is not only a functional piece of infrastructure but also a symbol of London's rich history and architectural ingenuity. Tourists flock to see its majestic design and learn about the mechanics behind its operation.In addition to their historical significance, lift bridges play a crucial role in urban planning. Cities located near large bodies of water often face challenges in balancing the needs of road traffic with those of maritime navigation. By incorporating lift bridges into their infrastructure, city planners can ensure that both vehicles and vessels can coexist without significant delays or disruptions. This is particularly important in bustling metropolitan areas where time is of the essence.Safety is a paramount concern when it comes to lift bridges. Engineers must consider various factors, including wind speed, weight limits, and the frequency of openings. Regular maintenance is essential to keep the mechanical components functioning properly, ensuring that the bridge can be raised and lowered smoothly. In some cases, advanced sensors and monitoring systems are installed to provide real-time data on the bridge's condition, allowing for proactive maintenance.Moreover, lift bridges can also serve as scenic viewpoints. Many of these structures offer pedestrian walkways that allow visitors to enjoy panoramic views of the surrounding area. For example, the Vincent Thomas Bridge in California not only connects San Pedro and Terminal Island but also provides stunning vistas of the Los Angeles skyline and the harbor below. This aspect of lift bridges adds cultural value to the communities they serve, attracting tourists and enhancing local economies.In conclusion, lift bridges are an impressive feat of engineering that combines functionality with aesthetic appeal. They facilitate the movement of both vehicles and boats, contributing to the seamless flow of transportation in urban environments. As cities continue to grow and evolve, the importance of lift bridges will undoubtedly remain significant, providing a vital link between land and water while showcasing human ingenuity.

升降桥是一种卓越的工程结构，在现代交通中发挥着重要作用。这些桥梁，也被称为可升降桥，旨在允许船只通过，同时仍然为车辆和行人提供通道。升降桥的机制涉及将桥面垂直升起，为船只在下面航行创造开口。这种双重功能使得升降桥在水道与道路交汇的地区至关重要。升降桥的历史可以追溯到几个世纪以前，其设计随着时间的推移而不断演变。早期的版本通常是手动操作的，需要工人付出相当大的努力来升降桥梁。然而，技术的进步导致了自动化系统的发展，可以通过按下按钮来操作。这种现代化不仅提高了效率，还增强了车辆和水上交通的安全性。世界上最著名的升降桥之一是伦敦的塔桥。该桥于1894年建成，具有两个塔楼，通过人行道连接，中央跨度可以升起以允许船只通过。塔桥不仅是一个功能性的基础设施，也是伦敦丰富历史和建筑智慧的象征。游客纷纷前来欣赏其雄伟的设计，并了解其操作背后的机械原理。除了历史意义外，升降桥在城市规划中也发挥着至关重要的作用。位于大水体附近的城市常常面临平衡公路交通与海洋导航需求的挑战。通过将升降桥纳入基础设施，城市规划者可以确保车辆和船只能够共存，而不会造成显著的延误或干扰。这在繁忙的大都市地区尤为重要，因为时间至关重要。安全是升降桥的首要关注点。工程师必须考虑各种因素，包括风速、重量限制和开桥的频率。定期维护对于保持机械部件正常运转至关重要，确保桥梁能够平稳地升降。在某些情况下，安装了先进的传感器和监测系统，以提供有关桥梁状况的实时数据，从而实现主动维护。此外，升降桥还可以作为观景点。这些结构中的许多都提供人行道，让游客可以欣赏周围地区的全景。例如，加利福尼亚的文森特·托马斯桥不仅连接圣佩德罗和终端岛，还提供洛杉矶天际线和下方港口的壮丽景色。升降桥的这一方面为它们服务的社区增加了文化价值，吸引游客并增强当地经济。总之，升降桥是结合功能性和美学吸引力的令人印象深刻的工程壮举。它们促进了车辆和船只的移动，为城市环境中的交通流畅做出了贡献。随着城市的继续增长和演变，升降桥的重要性无疑将保持显著，为陆地和水域之间提供重要的联系，同时展示人类的智慧。