movable span

简明释义

可动桥跨

英英释义

例句

1.The movable span mechanism is crucial for the functionality of the lift bridge.

这个可移动的跨度机制对升降桥的功能至关重要。

2.During maintenance, the movable span of the drawbridge was raised for inspection.

在维护期间，斜拉桥的可移动的跨度被抬起以进行检查。

3.A well-designed movable span can greatly enhance traffic flow in urban areas.

一个设计良好的可移动的跨度可以大大改善城市地区的交通流量。

4.Engineers designed the movable span to accommodate larger vessels in the harbor.

工程师设计了这个可移动的跨度以适应港口内更大的船只。

5.The bridge features a movable span that allows boats to pass underneath.

这座桥有一个可移动的跨度，可以让船只通过。

作文

The concept of a movable span is particularly relevant in the field of engineering and architecture, where it refers to a section of a structure that can be repositioned or adjusted to accommodate various needs. For instance, in bridge construction, a movable span allows for the passage of larger vessels by raising or lowering the bridge deck. This flexibility not only enhances the functionality of the bridge but also ensures safety and efficiency in transportation. The design of a movable span must consider factors such as weight distribution, materials used, and the mechanics of movement to ensure durability and reliability.In urban planning, the incorporation of movable spans can significantly improve traffic flow and accessibility. For example, cities with waterfronts may utilize movable spans in their pedestrian walkways, allowing for the adjustment of pathways based on tidal changes or boat traffic. This adaptability makes urban environments more dynamic and responsive to natural conditions.Moreover, the use of movable spans extends beyond bridges and walkways. In the context of sports facilities, retractable roofs are a form of movable span that enables venues to host events in varying weather conditions. By utilizing a movable span design, stadiums can optimize spectator experience and maintain the integrity of playing surfaces, regardless of external factors.The engineering behind a movable span involves intricate mechanisms that allow for smooth operation. Hydraulic systems, for example, are often employed to facilitate the lifting and lowering of these spans. Engineers must ensure that these systems are not only effective but also easy to operate and maintain. Safety features are paramount, as any failure in the mechanism could lead to disastrous consequences.In conclusion, the movable span is a remarkable innovation in the fields of engineering and architecture that exemplifies the balance between functionality and adaptability. Whether in bridges, urban planning, or sports facilities, the implementation of movable spans enhances the usability of structures, allowing them to serve multiple purposes and respond to changing conditions. As technology continues to advance, we can expect to see even more innovative applications of movable spans in the future, further enriching our built environment and improving our quality of life.

“可移动跨度”这一概念在工程和建筑领域尤为重要，它指的是可以重新定位或调整的结构部分。例如，在桥梁建设中，“可移动跨度”允许通过升降桥面来通行更大的船只。这种灵活性不仅增强了桥梁的功能性，还确保了交通运输的安全和效率。“可移动跨度”的设计必须考虑重量分布、使用材料和运动机制等因素，以确保耐用性和可靠性。在城市规划中，结合“可移动跨度”的设计可以显著改善交通流量和可达性。例如，拥有海滨的城市可能会在步行道中利用“可移动跨度”，根据潮汐变化或船只交通调整路径。这种适应性使城市环境更加动态，并对自然条件做出响应。此外，“可移动跨度”的应用不仅限于桥梁和步道。在体育设施的背景下，可伸缩屋顶就是一种“可移动跨度”，使场馆能够在不同天气条件下举办活动。通过利用“可移动跨度”的设计，体育场可以优化观众体验，并保持比赛场地的完整性，无论外部条件如何。“可移动跨度”的工程涉及复杂的机制，以实现平稳操作。例如，液压系统通常用于促进这些跨度的升降。工程师必须确保这些系统不仅有效，而且易于操作和维护。安全特性至关重要，因为机制的任何故障都可能导致灾难性后果。总之，“可移动跨度”是工程和建筑领域的一项杰出创新，体现了功能性和适应性之间的平衡。无论是在桥梁、城市规划还是体育设施中，“可移动跨度”的实施增强了结构的可用性，使其能够服务于多种目的并对变化的条件做出反应。随着技术的不断进步，我们可以期待未来在“可移动跨度”方面看到更多创新应用，进一步丰富我们的建筑环境，提高我们的生活质量。