swing bridge

简明释义

平旋桥

英英释义

例句

1.The old town has a beautiful swing bridge that opens to allow boats to pass.

这个古镇有一座美丽的摆动桥，可以开启让船只通过。

2.The engineering of the swing bridge allows it to rotate 90 degrees.

这个摆动桥的工程设计使其能够旋转90度。

3.The swing bridge was built in the 19th century and is still in use today.

摆动桥建于19世纪，至今仍在使用。

4.During the festival, the swing bridge was decorated with lights and flowers.

在节日期间，摆动桥装饰了灯光和花卉。

5.They had to wait for the swing bridge to close before crossing the river.

他们必须等到摆动桥关闭后才能过河。

作文

The concept of a swing bridge is fascinating and showcases the ingenuity of engineering. A swing bridge is a type of movable bridge that rotates horizontally around a pivot point to allow ships and boats to pass through. This design is particularly useful in areas where waterways are prevalent, and road traffic must be accommodated without obstructing maritime navigation. The history of swing bridges dates back to the early 19th century when engineers began experimenting with various designs to enhance transportation efficiency. One of the most notable examples of a swing bridge is the Chicago River's Wells Street Bridge, which has been operational since 1922. This bridge not only serves as a vital connection for vehicles but also plays a crucial role in the bustling shipping industry of Chicago.The mechanics of a swing bridge are quite interesting. Typically, these bridges consist of a central span that swings open to create a passageway for vessels. The operation of a swing bridge involves a series of gears and motors that control the rotation of the bridge. When a boat approaches, signals are sent to the bridge operator, who then activates the mechanism to swing the bridge open. This process requires precise timing and coordination to ensure the safety of both vehicular and maritime traffic. Furthermore, modern technology has enhanced the efficiency of swing bridges, incorporating automated systems that reduce the need for manual operation and minimize waiting times for both drivers and boaters.In addition to their functional benefits, swing bridges also contribute to the aesthetic appeal of urban landscapes. Many cities have incorporated beautifully designed swing bridges into their infrastructure, making them landmarks in their own right. For instance, the iconic swing bridge in the city of Amsterdam not only serves a practical purpose but also attracts tourists who wish to admire its architectural beauty. These bridges often feature intricate designs and are illuminated at night, adding charm to the surrounding area.However, the maintenance of a swing bridge can be quite challenging. Due to their mechanical components, regular inspections and repairs are necessary to ensure they operate smoothly. Environmental factors such as weather, water levels, and corrosion can impact the longevity of a swing bridge. Therefore, city planners must allocate sufficient resources for the upkeep of these structures to prevent accidents and ensure public safety.In conclusion, the swing bridge is a remarkable example of engineering that serves both functional and aesthetic purposes. Its ability to facilitate the movement of both vehicles and vessels makes it an essential component of transportation infrastructure in many regions. As cities continue to grow and evolve, the role of swing bridges will remain significant, adapting to meet the demands of modern transportation while preserving their historical charm. Understanding the importance of swing bridges allows us to appreciate the blend of utility and beauty in our urban environments, highlighting the creativity and problem-solving skills of engineers throughout history.

“摆桥”的概念令人着迷，展示了工程的聪明才智。摆桥是一种可移动桥梁，它围绕一个支点水平旋转，以允许船只和小艇通过。这种设计在水路丰富的地区特别有用，必须在不妨碍海上航行的情况下容纳公路交通。摆桥的历史可以追溯到19世纪初，当时工程师们开始尝试各种设计以提高运输效率。摆桥最著名的例子之一是芝加哥河的威尔斯街桥，自1922年投入使用以来一直在运营。这座桥不仅为车辆提供了重要的连接，还在芝加哥繁忙的航运业中发挥了关键作用。摆桥的机械原理相当有趣。通常，这些桥梁由一个中央跨度组成，该跨度旋转以创建船只通行的通道。摆桥的操作涉及一系列齿轮和马达，控制桥梁的旋转。当一艘船接近时，会向桥梁操作员发送信号，操作员随后激活机制，使桥梁打开。这一过程需要精确的时间安排和协调，以确保车辆和海上交通的安全。此外，现代技术提高了摆桥的效率，采用自动化系统减少了手动操作的需求，并最小化了司机和船主的等待时间。除了其功能性好处外，摆桥也为城市景观的美学吸引力做出了贡献。许多城市已将设计精美的摆桥纳入其基础设施，使其本身成为地标。例如，阿姆斯特丹市的标志性摆桥不仅具有实用目的，还吸引了希望欣赏其建筑之美的游客。这些桥梁通常具有复杂的设计，并在夜间照明，为周围区域增添魅力。然而，维护摆桥可能相当具有挑战性。由于其机械部件，定期检查和维修是确保其平稳运行所必需的。天气、水位和腐蚀等环境因素会影响摆桥的使用寿命。因此，城市规划者必须分配足够的资源来维护这些结构，以防止事故并确保公共安全。总之，摆桥是工程的杰出典范，既具有功能性又具有美学价值。它能够促进车辆和船只的移动，使其成为许多地区交通基础设施的重要组成部分。随着城市的不断发展和演变，摆桥的角色将继续保持重要性，适应现代交通的需求，同时保留其历史魅力。理解摆桥的重要性使我们能够欣赏到城市环境中实用性与美感的结合，突显了历史上工程师的创造力和解决问题的能力。