sectional area

简明释义

截面积截面积剖面面积

英英释义

例句

1.The sectional area of the circle was determined using the formula πr².

圆的截面面积是通过公式πr²计算得出的。

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

在流体动力学中，管道的截面面积会影响流量。

3.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面积以确保它能承受负载。

4.The architect specified the sectional area of the columns in the building plans.

建筑师在建筑图纸中指定了柱子的截面面积。

5.To optimize the design, we need to analyze the sectional area of the cross-section.

为了优化设计，我们需要分析横截面的截面面积。

作文

Understanding the concept of sectional area is crucial in various fields, including engineering, architecture, and physics. The term refers to the area of a particular section of an object, typically obtained by slicing through the object at a specific angle or position. This concept is essential when analyzing the properties of materials, determining load-bearing capacities, and designing structures. In this essay, we will explore the significance of sectional area in different applications and how it impacts our understanding of physical structures.In engineering, the sectional area plays a vital role in the design of beams and columns. For instance, when engineers design a bridge, they must consider the sectional area of each beam to ensure that it can support the weight of vehicles and pedestrians. A larger sectional area generally indicates a stronger beam, capable of bearing more load without bending or breaking. Moreover, the sectional area is used to calculate the moment of inertia, which is a measure of an object's resistance to bending. By analyzing the sectional area, engineers can optimize their designs for safety and efficiency.In architecture, the sectional area is equally important. Architects often create cross-sectional drawings of buildings to illustrate how different spaces relate to one another. These drawings help visualize the sectional area of walls, floors, and roofs, allowing architects to assess the flow of light and air within a structure. Additionally, understanding the sectional area of windows and doors can influence decisions about natural lighting and ventilation, which are crucial for creating comfortable living environments.Physics also relies heavily on the concept of sectional area. When studying fluid dynamics, the sectional area of pipes or channels affects the flow rate of liquids and gases. According to the principle of continuity, as the sectional area decreases, the velocity of the fluid increases, assuming constant flow. This relationship is fundamental in designing systems for water supply, sewage disposal, and even aerodynamics in vehicles. Engineers must carefully calculate the sectional area of ducts and pipes to ensure optimal flow and minimize energy loss.Moreover, the sectional area is crucial in the field of materials science. When testing materials for strength and durability, scientists often examine the sectional area of samples. This measurement helps determine how much stress a material can withstand before failing. For example, a tensile test involves pulling a material until it breaks, and the sectional area of the sample directly influences the results. Understanding the relationship between stress, strain, and sectional area allows researchers to develop stronger, more resilient materials for various applications.In conclusion, the concept of sectional area is integral to multiple disciplines, influencing the design, analysis, and understanding of structures and materials. Whether in engineering, architecture, physics, or materials science, recognizing the importance of sectional area enables professionals to make informed decisions that enhance safety, efficiency, and functionality. As we continue to push the boundaries of innovation, a solid grasp of such fundamental concepts will remain essential for future advancements.

理解截面面积的概念在工程、建筑和物理等多个领域至关重要。该术语指的是对象特定部分的面积，通常通过在特定角度或位置切割对象获得。当分析材料的属性、确定承载能力和设计结构时，这一概念是必不可少的。在本文中，我们将探讨截面面积在不同应用中的重要性，以及它如何影响我们对物理结构的理解。在工程中，截面面积在梁和柱的设计中发挥着重要作用。例如，当工程师设计一座桥时，他们必须考虑每根梁的截面面积，以确保其能够支撑车辆和行人的重量。较大的截面面积通常表示更强的梁，能够承受更多的负荷而不弯曲或断裂。此外，截面面积用于计算惯性矩，这是衡量物体抗弯曲能力的指标。通过分析截面面积，工程师可以优化他们的设计，以确保安全和效率。在建筑领域，截面面积同样重要。建筑师经常创建建筑物的横截面图，以说明不同空间之间的关系。这些图纸有助于可视化墙壁、地板和屋顶的截面面积，让建筑师评估光线和空气在结构内的流动。此外，理解窗户和门的截面面积可以影响自然采光和通风的决策，这对于创造舒适的居住环境至关重要。物理学也在很大程度上依赖于截面面积的概念。当研究流体动力学时，管道或通道的截面面积影响液体和气体的流速。根据连续性原理，假设流量恒定，当截面面积减小时，流体的速度会增加。这种关系在设计供水、污水处理乃至车辆空气动力学系统中至关重要。工程师必须仔细计算管道和通道的截面面积，以确保最佳流动并最小化能量损失。此外，截面面积在材料科学领域也至关重要。在测试材料的强度和耐久性时，科学家们经常检查样品的截面面积。这一测量有助于确定材料在破坏前能承受多少应力。例如，拉伸测试涉及拉扯材料直到其断裂，而样品的截面面积直接影响结果。理解应力、应变与截面面积之间的关系使研究人员能够开发出更强、更耐用的材料，适用于各种应用。总之，截面面积的概念对多个学科至关重要，影响结构和材料的设计、分析和理解。无论是在工程、建筑、物理还是材料科学领域，认识到截面面积的重要性使专业人士能够做出明智的决策，从而提高安全性、效率和功能性。随着我们不断推动创新的边界，对这种基本概念的扎实掌握将继续成为未来进步的关键。