sectional area

简明释义

剖面面积

英英释义

例句

1.In fluid dynamics, the sectional area of a pipe affects the flow rate of the liquid.

在流体动力学中，管道的截面积影响液体的流速。

2.The engineer calculated the sectional area of the beam to ensure it could support the load.

工程师计算了梁的截面积以确保它能够承受负载。

3.To determine the strength of the material, we need to measure its sectional area.

为了确定材料的强度，我们需要测量它的截面积。

4.The sectional area of the electrical conductor is crucial for calculating its resistance.

电导体的截面积对计算其电阻至关重要。

5.The architect specified the sectional area of the windows for optimal natural light.

建筑师为最佳自然光指定了窗户的截面积。

作文

In the field of engineering and physics, the concept of sectional area is crucial for understanding various properties of materials and structures. The term sectional area refers to the area of a particular section of an object, typically taken perpendicular to a specified axis. This measurement is vital when analyzing how forces are distributed across different parts of a structure, such as beams, columns, and pipes. For instance, when designing a bridge, engineers must calculate the sectional area of the supporting beams to ensure they can withstand the loads imposed by vehicles and environmental factors.The sectional area plays a significant role in determining the strength and stability of structural elements. A larger sectional area usually indicates greater strength, as it can distribute loads more effectively. Conversely, a smaller sectional area may lead to higher stress concentrations, which can result in failure under heavy loads. Therefore, engineers meticulously calculate the sectional area during the design phase to optimize material usage while maintaining safety standards.Moreover, the sectional area is not only important in civil engineering but also in fluid dynamics. In the study of fluid flow through pipes, the sectional area of the pipe directly affects the flow rate of the fluid. According to the principle of continuity, if the sectional area of a pipe decreases, the velocity of the fluid must increase to maintain a constant flow rate. This relationship is essential for designing efficient piping systems in various applications, including water supply and chemical processing.In addition to its practical applications, the concept of sectional area is also fundamental in theoretical studies. In mechanics, understanding how the sectional area influences stress and strain helps predict how materials will behave under different loading conditions. For example, in tensile tests, the sectional area of a sample determines the stress experienced by the material as it is stretched. This knowledge is crucial for selecting appropriate materials for specific applications, ensuring that they perform reliably under expected conditions.Furthermore, the sectional area is often used in calculations involving thermal conductivity and heat transfer. In heat exchangers, the sectional area of the heat transfer surfaces affects the efficiency of heat exchange between fluids. A larger sectional area allows for more surface contact, enhancing the heat transfer process. Engineers must carefully consider the sectional area when designing these systems to maximize performance while minimizing energy consumption.In conclusion, the concept of sectional area is integral to various fields of study, including engineering, physics, and fluid dynamics. Its implications on strength, stability, and efficiency make it a critical factor in design and analysis. Understanding the importance of sectional area allows professionals to create safer, more effective structures and systems. As technology advances, the methods for calculating and applying the sectional area continue to evolve, further enhancing our ability to innovate and improve the built environment.

在工程和物理领域，截面积的概念对于理解材料和结构的各种特性至关重要。术语截面积指的是物体某一部分的面积，通常是垂直于指定轴线的截面。这一测量在分析结构中不同部分如何分布受力时至关重要，例如梁、柱和管道。例如，在设计桥梁时，工程师必须计算支撑梁的截面积，以确保它们能够承受车辆和环境因素施加的负荷。截面积在确定结构元素的强度和稳定性方面发挥着重要作用。较大的截面积通常表明更大的强度，因为它可以更有效地分配负荷。相反，较小的截面积可能导致更高的应力集中，这可能导致在重负荷下发生失效。因此，工程师在设计阶段仔细计算截面积，以优化材料使用，同时保持安全标准。此外，截面积不仅在土木工程中重要，在流体动力学中也同样重要。在研究流体通过管道的流动时，管道的截面积直接影响流体的流量。根据连续性原理，如果管道的截面积减小，则流体的速度必须增加，以维持恒定的流量。这一关系对于设计各种应用中的高效管道系统至关重要，包括供水和化工处理。除了其实际应用外，截面积的概念在理论研究中也具有基础性意义。在力学中，理解截面积如何影响应力和应变有助于预测材料在不同加载条件下的表现。例如，在拉伸试验中，样品的截面积决定了材料在被拉伸时所经历的应力。这一知识对于选择适合特定应用的材料至关重要，确保它们在预期条件下可靠地工作。此外，截面积在涉及热导率和热传递的计算中也经常使用。在热交换器中，热交换表面的截面积影响流体之间的热交换效率。较大的截面积允许更多的表面接触，从而增强热传递过程。工程师在设计这些系统时必须仔细考虑截面积，以最大化性能，同时最小化能耗。总之，截面积的概念在工程、物理和流体动力学等多个研究领域中都是不可或缺的。它对强度、稳定性和效率的影响使其成为设计和分析中的关键因素。理解截面积的重要性使专业人士能够创造出更安全、更有效的结构和系统。随着技术的进步，计算和应用截面积的方法不断演变，进一步增强了我们创新和改善建筑环境的能力。