holddown

简明释义

英[ˈhəʊldˌdaʊn]美[ˈhoʊldˌdaʊn]

n. 垂下；缩减

英英释义

单词用法

同义词

反义词

例句

1.It USES holddown timers to prevent routing loops - default is 180 seconds.

它使用限制计时器避免路由回圈-预设为180秒。

2.In Figure, the holddown timer is set to 180 seconds. Therefore, an update to a route that was down and is now up could stay in the holddown state until the full 180 seconds have passed.

在图中，限制计时器设定为180秒，因此对一个原本中断而现在恢复的路由更新可能停留在限制状态内直到经过180秒。

3.Suddenly, he stopped and holddown his arms. This happy young man didn't wear underlinen!

突然，国王停住了，垂下了双手，这个幸福的人没有穿衬衣！

4.In Figure, the holddown timer is set to 180 seconds. Therefore, an update to a route that was down and is now up could stay in the holddown state until the full 180 seconds have passed.

在图中，限制计时器设定为180秒，因此对一个原本中断而现在恢复的路由更新可能停留在限制状态内直到经过180秒。

5.You should holddown the button for three seconds to reset the device.

你应该按住按钮固定三秒钟以重置设备。

6.The technician used a clamp to holddown the piece while working on it.

技术员使用夹具来固定零件以便进行操作。

7.During the storm, we had to holddown the tent to keep it from blowing away.

在风暴期间，我们不得不固定帐篷，以防它被刮走。

8.To ensure safety, always holddown the equipment during operation.

为了确保安全，操作时始终要固定设备。

9.Make sure to holddown the lid tightly to prevent any spills.

确保将盖子固定得紧紧的，以防止任何溢出。

作文

In the world of engineering and construction, the term holddown refers to a crucial component used to secure structures against lateral forces. These forces can arise from various sources, such as wind, seismic activity, or other environmental factors that threaten the stability of buildings. Understanding the concept of holddown systems is essential for architects and engineers as they design safe and resilient structures. A holddown typically consists of a metal bracket or device that anchors vertical elements, like posts or walls, to the foundation or floor. This anchoring process ensures that the structure remains intact during extreme conditions. For instance, in areas prone to earthquakes, holddown devices are vital as they help prevent the building from swaying excessively or collapsing under pressure. The design of a holddown system must consider various factors, including the type of materials used, the expected load, and the environmental conditions of the location. Engineers often conduct simulations and calculations to determine the most effective holddown configuration for a given project. This meticulous planning helps safeguard the inhabitants of the building and prolongs the structure's lifespan. Moreover, the use of holddown systems is not limited to residential buildings; they are equally important in commercial and industrial constructions. Large warehouses, for instance, require robust holddown systems to ensure that their expansive roofs can withstand heavy winds and snow loads. Failure to implement adequate holddown measures could lead to catastrophic structural failures, resulting in significant financial losses and endangering lives. In addition to their structural importance, holddown systems also play a role in meeting building codes and regulations. Many jurisdictions have specific requirements regarding lateral force resistance, and compliance with these codes often necessitates the inclusion of holddown devices in the design. This regulatory aspect emphasizes the importance of understanding and integrating holddown systems into modern construction practices. Furthermore, advancements in technology have led to the development of innovative holddown solutions that enhance performance and ease of installation. For example, newer materials and designs can reduce the weight and complexity of holddown systems while maintaining their effectiveness. This evolution reflects the ongoing commitment within the engineering community to improve safety standards and building practices. In conclusion, the significance of holddown systems in construction cannot be overstated. They serve as a fundamental element in ensuring the safety and stability of structures against various lateral forces. As we continue to face challenges posed by natural disasters and changing environmental conditions, the role of holddown devices will only become more critical. Therefore, it is imperative for professionals in the field to remain informed about the latest developments in holddown technology and best practices to create safer living and working spaces for everyone.

在工程和建筑的世界中，术语holddown指的是一种用于固定结构以抵御侧向力的重要组件。这些力量可能来自各种来源，例如风、地震活动或其他威胁建筑物稳定性的环境因素。理解holddown系统的概念对于建筑师和工程师设计安全和韧性结构至关重要。holddown通常由一个金属支架或装置组成，将垂直元素（如柱子或墙）锚定到基础或地板上。这种锚定过程确保结构在极端条件下保持完整。例如，在地震频发的地区，holddown装置至关重要，因为它们有助于防止建筑物在压力下过度摇摆或倒塌。holddown系统的设计必须考虑多种因素，包括所用材料的类型、预期载荷以及该地点的环境条件。工程师通常进行模拟和计算，以确定给定项目最有效的holddown配置。这种细致的规划有助于保护建筑物的居民，并延长结构的使用寿命。此外，holddown系统的使用不仅限于住宅建筑；它们在商业和工业建筑中同样重要。例如，大型仓库需要强大的holddown系统，以确保其宽阔的屋顶能够承受强风和积雪负荷。如果未能实施足够的holddown措施，可能会导致灾难性的结构失败，造成重大经济损失并危及生命。除了结构的重要性之外，holddown系统还在满足建筑规范和法规方面发挥作用。许多司法管辖区对侧向力抗力有具体要求，而遵守这些规范通常需要在设计中包含holddown装置。这一监管方面强调了理解和将holddown系统融入现代建筑实践的重要性。此外，技术的进步导致了创新holddown解决方案的发展，这些解决方案提高了性能和安装的便利性。例如，更新的材料和设计可以在保持有效性的同时减少holddown系统的重量和复杂性。这种演变反映了工程界在提高安全标准和建筑实践方面的持续承诺。总之，holddown系统在建筑中的重要性不容小觑。它们作为确保结构抵御各种侧向力的安全和稳定的基本要素。随着我们继续面临自然灾害和不断变化的环境条件带来的挑战，holddown装置的作用只会变得更加关键。因此，领域内的专业人士必须及时了解holddown技术和最佳实践的最新发展，以为每个人创造更安全的生活和工作空间。