cross-sectional area

简明释义

横截面积

英英释义

例句

1.To find the pressure exerted by a fluid, you can use the formula: Pressure = Force / cross-sectional area (横截面积).

要找出流体施加的压力，可以使用公式：压力 = 力 / 横截面积。

2.In the design of pipes, it is crucial to consider the cross-sectional area (横截面积) to ensure efficient flow.

在管道设计中，考虑横截面积以确保有效流动是至关重要的。

3.In engineering, the strength of a beam is often determined by its cross-sectional area (横截面积).

在工程中，梁的强度通常由其横截面积决定。

4.The flow rate of the river can be calculated by multiplying the velocity by the cross-sectional area (横截面积) of the water.

河流的流量可以通过将速度与水的横截面积相乘来计算。

5.The cross-sectional area (横截面积) of a wire affects its electrical resistance.

导线的横截面积会影响其电阻。

作文

Understanding the concept of cross-sectional area is crucial in various fields such as physics, engineering, and architecture. The term refers to the area of a particular section of an object or material that is perpendicular to a specified axis. For instance, when we take a look at a cylindrical pipe, the cross-sectional area would be the area of the circular face if we were to slice the pipe perpendicular to its length. This measurement plays a significant role in determining how fluids flow through the pipe, as well as the structural integrity of the material used.In physics, the cross-sectional area is essential for calculating the flow rate of liquids and gases. According to the principle of continuity, the flow rate must remain constant throughout a closed system. Therefore, if the cross-sectional area of a pipe decreases, the velocity of the fluid must increase to maintain the same flow rate. This relationship is expressed mathematically as Q = A * v, where Q represents the flow rate, A is the cross-sectional area, and v is the velocity of the fluid. This equation highlights the importance of understanding the cross-sectional area in fluid dynamics.Moreover, in engineering applications, the cross-sectional area influences the strength and stability of structures. For example, when designing beams or columns, engineers must consider the cross-sectional area to ensure that the structure can bear the intended loads without collapsing. A larger cross-sectional area typically means that the material can support more weight, which is why materials like steel are often used in construction. By increasing the cross-sectional area of a beam, engineers can enhance its load-bearing capacity while minimizing the risk of failure.Architecture also relies heavily on the concept of cross-sectional area. When creating building designs, architects must consider how different sections of a building will interact with one another. For instance, the cross-sectional area of windows and doors affects natural light flow and ventilation within the space. By optimizing these areas, architects can create more energy-efficient buildings that utilize natural resources effectively.Furthermore, the cross-sectional area is not limited to just solid objects. It can also apply to biological systems. In human anatomy, for example, the cross-sectional area of blood vessels can influence blood flow and pressure. Understanding these principles can lead to better medical interventions and treatments.In conclusion, the concept of cross-sectional area is integral to multiple disciplines. Whether it is in the study of fluid dynamics, structural engineering, architectural design, or biological systems, recognizing the significance of cross-sectional area allows professionals to make informed decisions. By mastering this concept, one can appreciate its wide-ranging implications and applications in both theoretical and practical scenarios. As we continue to explore the intricacies of our world, the cross-sectional area remains a fundamental aspect that connects various scientific and engineering principles together.

理解横截面积的概念在物理学、工程学和建筑学等多个领域至关重要。该术语指的是一个物体或材料在特定轴线垂直方向上的某一部分的面积。例如，当我们观察一个圆柱形管道时，横截面积就是如果我们将管道垂直于其长度切割时所得到的圆形面。这一测量对于确定流体在管道中流动的方式以及所用材料的结构完整性起着重要作用。在物理学中，横截面积对于计算液体和气体的流量至关重要。根据连续性原理，流量必须在封闭系统中保持恒定。因此，如果管道的横截面积减小，流体的速度必须增加以维持相同的流量。这个关系可以用数学公式表示为Q = A * v，其中Q代表流量，A是横截面积，v是流体的速度。这个方程突显了理解流体动力学中横截面积的重要性。此外，在工程应用中，横截面积影响结构的强度和稳定性。例如，在设计梁或柱时，工程师必须考虑横截面积以确保结构能够承受预期的负载而不发生倒塌。较大的横截面积通常意味着材料能够支持更多的重量，这就是为什么钢材常被用于建筑中的原因。通过增加梁的横截面积，工程师可以提高其承载能力，同时降低失效的风险。建筑学也高度依赖于横截面积的概念。在创建建筑设计时，建筑师必须考虑建筑不同部分之间的相互作用。例如，窗户和门的横截面积会影响空间内的自然光流动和通风。通过优化这些区域，建筑师可以创造出更节能的建筑，充分利用自然资源。此外，横截面积并不仅限于固体物体。它也可以应用于生物系统。在人体解剖学中，例如，血管的横截面积可以影响血流和血压。理解这些原理可以导致更好的医疗干预和治疗。总之，横截面积的概念对多个学科至关重要。无论是在流体动力学研究、结构工程、建筑设计还是生物系统中，认识到横截面积的重要性使专业人士能够做出明智的决策。通过掌握这一概念，人们可以欣赏其广泛的影响和在理论与实践场景中的应用。随着我们继续探索世界的复杂性，横截面积仍然是连接各种科学和工程原理的基本方面。