sectional area

简明释义

截面积剖面面积

英英释义

例句

1.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够承受负载。

2.To improve efficiency, we need to optimize the sectional area of the air ducts.

为了提高效率，我们需要优化空气管道的截面面积。

3.The sectional area of the wing is crucial for determining the lift generated by an aircraft.

机翼的截面面积对确定飞机产生的升力至关重要。

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

建筑师在建筑设计中指定了柱子的截面面积。

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

在流体动力学中，管道的截面面积影响液体的流速。

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 area of a particular section of an object or structure when it is cut through by a plane. This concept is particularly important when analyzing the strength, stability, and flow characteristics of different materials and structures. For instance, when designing a bridge, engineers must consider the sectional area of the beams and supports to ensure that they can withstand the loads they will encounter during their lifespan.In fluid dynamics, the sectional area plays a significant role in determining the flow rate of liquids or gases through pipes or channels. According to the principle of continuity, the flow rate must remain constant throughout a closed system. Therefore, if the sectional area of a pipe decreases, the velocity of the fluid must increase to maintain the same flow rate. This relationship is essential in the design of piping systems in various industries, including water supply and chemical processing.In the field of architecture, understanding the sectional area is vital when assessing the load-bearing capabilities of walls and columns. Architects often create cross-sectional drawings to visualize how different sections of a building will interact with each other. By calculating the sectional area of structural elements, architects can ensure that their designs meet safety standards and can support the weight of the materials used.Moreover, the sectional area is not limited to solid objects; it can also apply to hollow structures. For example, in the case of a hollow cylinder, such as a pipe, the sectional area would be calculated by subtracting the area of the inner circle from the area of the outer circle. This calculation is essential for determining the effective flow area within the pipe and is critical for ensuring efficient transport of fluids.Furthermore, the sectional area has implications in environmental science, particularly in studying ecosystems. For instance, when examining the habitats of aquatic organisms, scientists may analyze the sectional area of rivers or streams to understand how changes in water flow can affect the organisms living there. A larger sectional area might indicate a slower flow, which could provide a more suitable environment for certain species.In conclusion, the concept of sectional area is a fundamental aspect of many scientific and engineering disciplines. Its applications are vast, ranging from structural analysis in engineering to ecological studies in environmental science. By mastering the understanding of sectional area, professionals in these fields can make informed decisions that enhance safety, efficiency, and sustainability. The ability to accurately calculate and interpret sectional area is a skill that will continue to be relevant as we advance in technology and deepen our understanding of the natural world.

理解横截面积的概念在工程、建筑和物理等多个领域至关重要。术语横截面积指的是当一个物体或结构被平面切割时，特定部分的面积。这个概念在分析不同材料和结构的强度、稳定性和流动特性时尤为重要。例如，在设计桥梁时，工程师必须考虑梁和支撑的横截面积，以确保它们能够承受在其使用寿命中遇到的负载。在流体动力学中，横截面积在确定液体或气体通过管道或通道的流量时发挥着重要作用。根据连续性原理，流量在封闭系统中必须保持恒定。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。这种关系在水供应和化工处理等各个行业的管道系统设计中至关重要。在建筑领域，理解横截面积在评估墙壁和柱子的承载能力时至关重要。建筑师通常会创建横截面图，以可视化建筑的不同部分如何相互作用。通过计算结构元素的横截面积，建筑师可以确保他们的设计符合安全标准，并能支持所用材料的重量。此外，横截面积不仅限于固体物体；它也可以应用于空心结构。例如，在空心圆柱体（如管道）的情况下，横截面积的计算将通过从外圈的面积中减去内圈的面积来进行。这一计算对于确定管道内的有效流动面积至关重要，对于确保流体的高效运输至关重要。此外，横截面积在环境科学中也有影响，尤其是在研究生态系统时。例如，在检查水生生物栖息地时，科学家可能会分析河流或溪流的横截面积，以了解水流变化如何影响生活在那里的生物。更大的横截面积可能表明流速较慢，这可能为某些物种提供了更合适的环境。总之，横截面积的概念是许多科学和工程学科的基本方面。它的应用广泛，从工程中的结构分析到环境科学中的生态研究。通过掌握对横截面积的理解，这些领域的专业人士可以做出明智的决策，从而提高安全性、效率和可持续性。准确计算和解释横截面积的能力是一项技能，随着我们技术的进步和对自然世界理解的加深，这项技能将继续相关。