cross-sectional area

简明释义

横切面积

英英释义

例句

1.To optimize the design, we need to analyze the cross-sectional area 横截面积 of the airfoil.

为了优化设计，我们需要分析机翼的横截面积 横截面积。

2.The flow rate of a fluid can be determined by measuring the velocity and the cross-sectional area 横截面积 of the pipe.

流体的流速可以通过测量管道的速度和横截面积 横截面积来确定。

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

导线的横截面积 横截面积会影响其电阻。

4.In fluid dynamics, the cross-sectional area 横截面积 is crucial for calculating pressure changes.

在流体动力学中，横截面积 横截面积对于计算压力变化至关重要。

5.Engineers must calculate the cross-sectional area 横截面积 of beams to ensure they can support the required loads.

工程师必须计算梁的横截面积 横截面积以确保它们能够支撑所需的负载。

作文

The concept of cross-sectional area is crucial in various fields such as engineering, physics, and architecture. It refers to the area of a particular section of an object that is perpendicular to a specified axis. Understanding this concept is essential for calculating properties like flow rates, structural integrity, and even thermal dynamics. For instance, when designing a bridge, engineers must consider the cross-sectional area of the materials used. A larger cross-sectional area can distribute weight more effectively, ensuring that the structure can withstand heavy loads without collapsing.In fluid dynamics, the cross-sectional area plays a significant role in determining the flow rate of liquids and gases. According to the principle of continuity, if the cross-sectional area decreases, the velocity of the fluid must increase to maintain a constant flow rate. This principle is evident in the design of pipes and ducts, where varying diameters can significantly affect the efficiency of fluid transport. Understanding how to calculate the cross-sectional area allows engineers to optimize these systems for better performance.Furthermore, in the field of thermodynamics, the cross-sectional area is important for heat transfer calculations. When analyzing how heat moves through materials, the cross-sectional area can influence the rate at which heat is conducted. A larger cross-sectional area typically allows for more efficient heat transfer, which is a critical factor in the design of heating and cooling systems.In architecture, the cross-sectional area is vital for understanding how different elements of a building interact with each other and the forces acting upon them. For example, when designing columns or beams, architects must calculate the cross-sectional area to ensure they can support the loads placed upon them. If the cross-sectional area is too small, it could lead to structural failure. Thus, accurate measurements and calculations are paramount in the design process.Moreover, the cross-sectional area is not limited to rigid structures; it can also apply to biological systems. For instance, the cross-sectional area of blood vessels can impact blood flow and pressure within the cardiovascular system. A narrower vessel can increase resistance and affect overall circulation, making it an important consideration in medical studies.In conclusion, the term cross-sectional area encompasses a fundamental aspect of many scientific and engineering disciplines. Its implications are far-reaching, affecting everything from the safety of large structures to the efficiency of fluid transport systems. By mastering the concept of cross-sectional area, professionals in these fields can make informed decisions that enhance both functionality and safety. Therefore, a thorough understanding of this term is not just beneficial but essential for success in various technical domains.

“截面面积”这一概念在工程学、物理学和建筑学等多个领域中至关重要。它指的是物体某一特定截面相对于指定轴的垂直面积。理解这一概念对于计算流量、结构完整性甚至热力学特性至关重要。例如，在设计桥梁时，工程师必须考虑所用材料的截面面积。较大的截面面积可以更有效地分散重量，确保结构能够承受重载而不发生倒塌。在流体动力学中，截面面积在决定液体和气体的流速方面起着重要作用。根据连续性原理，如果截面面积减小，流体的速度必须增加以保持恒定的流量。这一原理在管道和风道的设计中表现得尤为明显，不同直径的变化会显著影响流体运输的效率。了解如何计算截面面积使工程师能够优化这些系统，以实现更好的性能。此外，在热力学领域，截面面积对于热传导计算也至关重要。在分析热量如何通过材料移动时，截面面积会影响热量传导的速率。较大的截面面积通常允许更高效的热传递，这在供暖和制冷系统的设计中是一个关键因素。在建筑学中，截面面积对于理解建筑各个元素之间的相互作用及其所受力的影响至关重要。例如，在设计柱子或梁时，建筑师必须计算截面面积以确保它们能够支撑施加于其上的负载。如果截面面积过小，可能导致结构失效。因此，在设计过程中，准确的测量和计算至关重要。此外，截面面积不仅限于刚性结构，它也适用于生物系统。例如，血管的截面面积可以影响心血管系统内的血流和压力。狭窄的血管会增加阻力，影响整体循环，使其成为医学研究中的重要考虑因素。总之，术语截面面积涵盖了许多科学和工程学科的基本方面。它的影响深远，涉及从大型结构的安全性到流体运输系统的效率等各个方面。通过掌握截面面积的概念，这些领域的专业人士能够做出明智的决策，从而提高功能性和安全性。因此，深入理解这一术语不仅有利，而且在各种技术领域的成功中至关重要。