subtense

简明释义

英[sʌbˈtens]美[səbˈtens]

n. 对边；弦

adj. 以所对角度进行测量的

英英释义

单词用法

同义词

反义词

例句

1.Under the same load, the curve that the maximum stress of aluminum honeycomb core varies with the subtense distance and depth of honeycomb core has been gained.

得到了在受同样大小载荷时，蜂窝铝芯最大应力随蜂窝芯格对边距、深度变化而变化的曲线。

2.Under the same load, the curve that the maximum stress of aluminum honeycomb core varies with the subtense distance and depth of honeycomb core has been gained.

得到了在受同样大小载荷时，蜂窝铝芯最大应力随蜂窝芯格对边距、深度变化而变化的曲线。

3.By measuring the subtense 弦长, we can infer the height of the building from a distance.

通过测量subtense 弦长，我们可以推断出远处建筑物的高度。

4.The engineer explained how to determine the subtense 弦长 using trigonometric functions.

工程师解释了如何使用三角函数来确定subtense 弦长。

5.In surveying, the subtense 弦长 between two points is crucial for accurate measurements.

在测量中，两个点之间的subtense 弦长 对于准确测量至关重要。

6.The length of the shadow cast by the pole can be used to calculate the subtense 弦长 of the angle formed with the ground.

杆子投下的阴影长度可以用来计算与地面形成的角度的subtense 弦长。

7.The subtense 弦长 of the triangle formed by the two trees helped us estimate their height.

由两棵树形成的三角形的subtense 弦长帮助我们估算它们的高度。

作文

In the realm of geometry and trigonometry, the term subtense (弦长) plays a crucial role in understanding the relationships between angles and lengths in various shapes. A subtense is defined as the line segment that subtends an angle at a given point, typically at the vertex of a triangle or polygon. This concept is not only fundamental to theoretical mathematics but also has practical applications in fields such as architecture, engineering, and physics.To illustrate the importance of subtense, consider a simple triangle formed by three points: A, B, and C. If we take point A as the vertex, the line segment BC becomes the subtense of the angle at point A. The length of this subtense directly influences the properties of the triangle, including its area and the measures of its other angles. By understanding the subtense, mathematicians can derive various formulas that help in calculating unknown dimensions of geometric figures.Moreover, the concept of subtense extends beyond mere triangles. In the context of circles, for example, the subtense can refer to the chord that subtends an angle at the center of the circle. This relationship is pivotal in determining arc lengths and sector areas, which are essential in many real-world applications, including navigation and astronomy.In architecture, the knowledge of subtense can be utilized to design structures that are not only aesthetically pleasing but also structurally sound. Architects often rely on the principles of geometry, including the concept of subtense, to ensure that their designs can withstand various forces and pressures. For instance, when designing a bridge, engineers must calculate the subtense of angles formed by support beams to ensure stability and safety.Furthermore, in physics, the notion of subtense is vital when analyzing forces acting upon objects. When studying projectile motion, for instance, the angle of launch and the distance traveled can be understood better through the lens of subtense. By breaking down the trajectory into components, one can calculate the maximum height and range of the projectile, which are influenced by the initial angle and the corresponding subtense.In conclusion, the term subtense encapsulates a fundamental idea that bridges various disciplines, from mathematics to engineering and physics. Understanding the subtense not only enhances our comprehension of geometric relationships but also equips us with the tools needed to solve practical problems in the real world. Whether in designing a stable structure or calculating the path of a moving object, the concept of subtense remains an invaluable part of our analytical toolkit. As we continue to explore the intricacies of geometry and its applications, the significance of subtense will undoubtedly persist, guiding us toward more profound insights in both theory and practice.

在几何和三角学的领域中，术语subtense（弦长）在理解各种形状中角度和长度之间的关系时发挥着至关重要的作用。subtense被定义为在给定点处（通常是在三角形或多边形的顶点）所对的线段。这个概念不仅是理论数学的基础，而且在建筑、工程和物理等领域具有实际应用。为了说明subtense的重要性，考虑一个由三个点形成的简单三角形：A、B和C。如果我们将点A作为顶点，则线段BC成为角A的subtense。这个subtense的长度直接影响三角形的性质，包括其面积和其他角的度量。通过理解subtense，数学家可以推导出各种公式，帮助计算几何图形的未知尺寸。此外，subtense的概念不仅限于三角形。在圆的上下文中，例如，subtense可以指在圆心处所对的弦。这个关系在确定弧长和扇形面积时至关重要，这在许多现实世界的应用中都是必不可少的，包括导航和天文学。在建筑学中，关于subtense的知识可以用于设计不仅美观而且结构稳固的建筑。建筑师通常依赖几何原理，包括subtense的概念，以确保他们的设计能够承受各种力和压力。例如，在设计桥梁时，工程师必须计算支撑梁所形成的角度的subtense以确保稳定性和安全性。此外，在物理学中，subtense的概念在分析作用于物体的力时至关重要。当研究抛射运动时，例如，发射角度和行进距离可以通过subtense的视角更好地理解。通过将轨迹分解为分量，可以计算出抛射物的最大高度和范围，这些都受到初始角度和相应subtense的影响。总之，术语subtense包含了一个基本概念，它连接了多个学科，从数学到工程和物理。理解subtense不仅增强了我们对几何关系的理解，还为我们提供了解决现实世界中实际问题所需的工具。无论是在设计稳定的结构，还是计算运动物体的路径，subtense的概念始终是我们分析工具箱中不可或缺的一部分。随着我们继续探索几何学的复杂性及其应用，subtense的重要性无疑会持续存在，引导我们在理论和实践中获得更深刻的见解。