fixed weir

简明释义

固定堰

英英释义

例句

1.A fixed weir can help maintain a stable habitat for aquatic life.

一个固定堰可以帮助维持水生生物的稳定栖息地。

2.The fixed weir was built to ensure proper irrigation for the agricultural land.

这个固定堰是为了确保农业用地的适当灌溉而建造的。

3.During the construction, they carefully measured the height of the fixed weir to optimize water flow.

在施工过程中，他们仔细测量了固定堰的高度，以优化水流。

4.Engineers designed the fixed weir to prevent flooding in the nearby fields.

工程师设计了这个固定堰以防止附近田地的洪水。

5.The river management team installed a fixed weir to control the water level during the rainy season.

河流管理团队安装了一个固定堰以控制雨季的水位。

作文

In the realm of hydraulic engineering, various structures are designed to manage water flow and maintain ecological balance. One such structure is the fixed weir, which plays a crucial role in controlling water levels in rivers, streams, and other bodies of water. A fixed weir is essentially a barrier placed across a waterway that allows water to flow over it at a controlled rate. Unlike adjustable weirs, which can be modified to change the flow rate, a fixed weir remains at a constant height, making it simpler to design and maintain.The primary function of a fixed weir is to regulate water flow. By creating a controlled overflow, it helps to manage the water levels upstream, preventing flooding during periods of heavy rain or snowmelt. This is particularly important in agricultural regions where excess water can damage crops. Furthermore, a fixed weir can also facilitate the migration of fish and other aquatic organisms by providing a stable environment for them to navigate.In addition to flood control, fixed weirs are often used in water quality management. By regulating the flow of water, they can help to improve the natural filtration processes that occur in wetlands and riparian zones. This can lead to better water quality downstream, benefiting both human populations and wildlife.The construction of a fixed weir involves careful planning and consideration of various factors, including the local ecosystem, sediment transport, and hydrology. Engineers must ensure that the structure does not disrupt the natural flow of the river or harm aquatic life. Materials used in the construction of a fixed weir can vary, but they are typically made from concrete, stone, or steel, depending on the specific requirements of the site.One of the advantages of a fixed weir is its durability. Once constructed, it requires minimal maintenance compared to other types of water control structures. However, it is essential to monitor the condition of the weir regularly to ensure that it remains effective over time. Sediment buildup can occur, and periodic removal may be necessary to maintain optimal performance.In conclusion, the fixed weir is an invaluable tool in the field of water management. Its ability to regulate water flow, prevent flooding, and enhance water quality makes it a vital component of many ecosystems. Understanding the function and importance of a fixed weir can lead to better management practices and a healthier environment for both humans and wildlife. As we continue to face challenges related to climate change and water scarcity, the role of structures like the fixed weir will only become more critical in ensuring sustainable water resources for future generations.

在水利工程领域，各种结构被设计用于管理水流和维护生态平衡。其中一个重要的结构是固定堰，它在控制河流、溪流和其他水体的水位方面发挥着至关重要的作用。固定堰本质上是放置在水道上的障碍物，允许水以受控的速度流过。与可调堰不同，后者可以修改以改变流量，固定堰保持在恒定的高度，使其设计和维护更为简单。固定堰的主要功能是调节水流。通过创建受控的溢流，它有助于管理上游的水位，防止在暴雨或融雪期间发生洪水。这在农业地区尤为重要，因为过量的水会损害作物。此外，固定堰还可以促进鱼类和其他水生生物的迁移，为它们提供一个稳定的栖息环境。除了洪水控制之外，固定堰通常用于水质管理。通过调节水流，它们可以帮助改善湿地和河岸带中发生的自然过滤过程。这可以提高下游的水质，使人类和野生动物都受益。固定堰的建设涉及仔细规划和考虑各种因素，包括当地生态系统、沉积物运输和水文。工程师必须确保该结构不会干扰河流的自然流动或伤害水生生物。固定堰的建材可以有所不同，但通常根据现场的具体要求，由混凝土、石材或钢材制成。固定堰的一个优点是其耐久性。一旦建成，与其他类型的水控结构相比，它需要的维护较少。然而，定期监测堰的状况仍然至关重要，以确保其长期有效。沉积物的积聚可能会发生，定期清除可能是必要的，以保持最佳性能。总之，固定堰是水管理领域中不可或缺的工具。它调节水流、防止洪水和改善水质的能力，使其成为许多生态系统的重要组成部分。理解固定堰的功能和重要性可以导致更好的管理实践，并为人类和野生动物创造一个更健康的环境。随着我们继续面临气候变化和水资源短缺相关的挑战，像固定堰这样的结构在确保可持续水资源方面的角色将变得更加关键，以造福未来的世代。