sectional area

简明释义

横剖面面积

英英释义

例句

1.In structural design, the sectional area of beams is crucial for determining load-bearing capacity.

在结构设计中，梁的断面面积对确定承载能力至关重要。

2.To improve efficiency, we need to optimize the sectional area of the ducting in the HVAC system.

为了提高效率，我们需要优化HVAC系统中管道的断面面积。

3.The sectional area of a cable determines its current-carrying capacity.

电缆的断面面积决定了其载流能力。

4.The engineer calculated the sectional area of the pipe to ensure it could handle the flow rate.

工程师计算了管道的断面面积以确保它能处理流量。

5.The sectional area of an aircraft wing affects its lift and drag characteristics.

飞机机翼的断面面积影响其升力和阻力特性。

作文

Understanding the concept of sectional area is crucial in various fields such as engineering, architecture, and physics. The term sectional area refers to the cross-sectional area of an object, which is obtained by cutting through the object at a specific point and measuring the area of the resulting shape. This concept plays a significant role in determining the strength and stability of structures, as well as in fluid dynamics where it affects the flow rate of liquids and gases.In engineering, for instance, when designing beams or columns, engineers must calculate the sectional area to ensure that the materials used can withstand the loads they will encounter. A larger sectional area typically means that the structure can bear more weight. For example, a steel beam with a larger sectional area will be able to support a heavier load than one with a smaller sectional area. This is why understanding how to calculate the sectional area is essential for engineers when they are designing safe and effective structures.Similarly, in the field of hydraulics, the sectional area of pipes is vital for calculating the flow rate of fluids. According to the principle of continuity in fluid dynamics, the product of the sectional area and the velocity of the fluid must remain constant along a streamline. Therefore, if the sectional area decreases, the velocity must increase to maintain the same flow rate. This relationship is crucial for engineers designing systems for water supply or drainage, as it helps them to predict how much fluid can pass through a given pipe size at a certain speed.In architecture, the sectional area is also important when considering light and ventilation in buildings. By analyzing the sectional area of windows and openings, architects can determine how much natural light will enter a space and how air will circulate within a building. This analysis not only enhances the aesthetic appeal of the design but also contributes to energy efficiency by reducing the need for artificial lighting and climate control.Moreover, the sectional area concept extends beyond solid objects to include various geometrical shapes. For instance, in the case of a circular pipe, the sectional area can be calculated using the formula A = πr², where A is the area and r is the radius. Understanding this calculation is fundamental for anyone working in fields related to construction and manufacturing, as it allows for precise measurements that are critical for safety and performance.In conclusion, the sectional area is a vital concept that intersects multiple disciplines, highlighting its importance in practical applications. Whether it’s in ensuring structural integrity, optimizing fluid flow, or enhancing architectural design, a solid grasp of the sectional area enables professionals to make informed decisions that impact safety, efficiency, and functionality. As we continue to advance in technology and design, the understanding of sectional area will remain a cornerstone in the development of innovative solutions across various industries.

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。术语截面面积指的是物体的横截面积，即通过在特定点切割物体并测量所产生形状的面积而获得的。这一概念在确定结构的强度和稳定性方面发挥着重要作用，同时在流体动力学中也影响着液体和气体的流速。例如，在工程设计中，当设计梁或柱时，工程师必须计算截面面积以确保所用材料能够承受它们将遇到的负载。较大的截面面积通常意味着结构可以承受更大的重量。例如，一个具有较大截面面积的钢梁将能够支持比一个具有较小截面面积的钢梁更重的负载。这就是为什么理解如何计算截面面积对于工程师在设计安全有效的结构时至关重要。同样，在液压领域，管道的截面面积对于计算流体的流速也至关重要。根据流体动力学中的连续性原理，流线上的截面面积与流体速度的乘积必须保持不变。因此，如果截面面积减小，速度必须增加以维持相同的流量。这一关系对于设计供水或排水系统的工程师至关重要，因为它帮助他们预测在特定速度下，给定管道尺寸能够通过多少流体。在建筑设计中，截面面积在考虑建筑物的采光和通风时也很重要。通过分析窗户和开口的截面面积，建筑师可以确定自然光将进入空间的多少，以及空气在建筑物内的循环方式。这种分析不仅增强了设计的美观性，还通过减少对人工照明和气候控制的需求来提高能源效率。此外，截面面积的概念超越了固体物体，包括各种几何形状。例如，在圆形管道的情况下，截面面积可以使用公式A = πr²进行计算，其中A是面积，r是半径。理解这一计算对于任何从事与建筑和制造相关领域的人来说都是基础，因为它允许进行精确的测量，这对安全和性能至关重要。总之，截面面积是一个重要的概念，交叉于多个学科，突显了其在实际应用中的重要性。无论是在确保结构完整性、优化流体流动，还是增强建筑设计方面，对截面面积的扎实掌握使专业人士能够做出影响安全、高效和功能的明智决策。随着我们在技术和设计方面的不断进步，对截面面积的理解将继续成为各个行业创新解决方案发展的基石。