semicylinder

简明释义

英[ˈsemɪˈsɪlɪndə]美[ˈsemaɪˈsɪlɪndər]

半柱面

半圆柱体

英英释义

单词用法

同义词

反义词

例句

1.The bend Angle of the flyer plate was determined by flash X-ray photography during explosive welding and the value coincides with that obtained in the semicylinder test.

通过爆炸焊接过程的闪光X射线摄影，测得了飞板弯折角。其数值与半圆柱试验测得的飞板弯折角基本上相一致。

2.The bend Angle of the flyer plate was determined by flash X-ray photography during explosive welding and the value coincides with that obtained in the semicylinder test.

通过爆炸焊接过程的闪光X射线摄影，测得了飞板弯折角。其数值与半圆柱试验测得的飞板弯折角基本上相一致。

3.In the physics lab, we used a semicylinder to demonstrate fluid dynamics.

在物理实验室中，我们使用一个半圆柱来演示流体动力学。

4.He created a model of a bridge using a semicylinder as the main support structure.

他用一个半圆柱作为主要支撑结构制作了一个桥的模型。

5.The water tank is shaped like a semicylinder, allowing for efficient space usage.

这个水箱的形状像一个半圆柱，可以有效利用空间。

6.The architect designed a unique roof shape that resembled a semicylinder.

建筑师设计了一种独特的屋顶形状，类似于一个半圆柱。

7.The artist carved a sculpture that featured a semicylinder as its base.

艺术家雕刻了一座雕塑，以一个半圆柱作为基础。

作文

In the realm of geometry, shapes and figures play a significant role in understanding the world around us. One such fascinating shape is the semicylinder, which can be defined as half of a cylinder. This unique geometric figure has various applications in both theoretical mathematics and practical engineering. Understanding the properties and features of a semicylinder can enhance our comprehension of more complex three-dimensional shapes.To visualize a semicylinder, imagine taking a standard cylinder and slicing it perfectly in half along its length. This action reveals two identical halves, each resembling a curved surface with a flat base. The resulting shape retains the circular cross-section characteristic of a cylinder but only extends over half of the full cylindrical volume. The semicylinder can be described by its radius and height, just like a full cylinder, but its volume and surface area calculations differ due to its reduced dimensions.Mathematically, the volume of a semicylinder can be calculated using the formula V = (1/2) * π * r² * h, where 'r' represents the radius and 'h' denotes the height. This formula shows that the volume is directly proportional to both the square of the radius and the height, emphasizing the importance of these dimensions in determining the overall size of the shape. Similarly, the surface area of a semicylinder can be computed by considering both the curved surface area and the area of the flat base. The total surface area can be expressed as A = π * r * h + r², which accounts for the semi-circular area at the top and the rectangular area formed by the height and the diameter of the base.The semicylinder finds numerous applications across various fields. In architecture, for instance, designers may incorporate semicylinders into their plans for creating aesthetically pleasing structures or functional spaces. The shape can be seen in elements like arches, domes, and even furniture designs, where the curvature provides both support and visual appeal. Additionally, in engineering, semicylinders are often used in the design of pipes and tanks, where understanding fluid dynamics is crucial for functionality.Moreover, the study of semicylinders extends beyond practical applications; it also serves as an important concept in advanced mathematical theories. In calculus, for example, learning about the properties of semicylinders helps students grasp the principles of integration and volume calculation. By exploring how shapes interact and change, students develop a deeper understanding of spatial reasoning and geometric relationships.In conclusion, the semicylinder is a captivating geometric figure that bridges the gap between simple shapes and more complex structures. Its unique properties and applications make it an essential topic in mathematics and engineering. By mastering the concept of the semicylinder, one can appreciate not only its mathematical significance but also its practical uses in everyday life. Whether in architecture, engineering, or theoretical studies, the semicylinder continues to be a shape that inspires creativity and innovation, reminding us of the beauty of geometry in our world.

在几何学的领域中，形状和图形在理解我们周围的世界中起着重要作用。其中一个迷人的形状是半圆柱，可以定义为圆柱的一半。这种独特的几何图形在理论数学和实际工程中都有多种应用。理解半圆柱的性质和特征可以增强我们对更复杂的三维形状的理解。要想象半圆柱，可以想象将一个标准的圆柱沿其长度完美地切成两半。这一动作揭示了两个相同的部分，每个部分都呈现出一个带有平底的弯曲表面。结果的形状保留了圆柱特有的圆形横截面，但仅延伸到完整圆柱体积的一半。半圆柱可以通过其半径和高度来描述，就像完整的圆柱一样，但由于其减少的尺寸，其体积和表面积的计算有所不同。在数学上，半圆柱的体积可以使用公式V = (1/2) * π * r² * h来计算，其中'r'表示半径，'h'表示高度。这个公式表明，体积与半径的平方和高度直接成正比，强调了这些维度在确定形状整体大小中的重要性。类似地，半圆柱的表面积可以通过考虑弯曲的表面积和底部的平坦区域来计算。总表面积可以表示为A = π * r * h + r²，这考虑了顶部的半圆形区域和由高度与底部直径形成的矩形区域。半圆柱在各个领域中找到了许多应用。例如，在建筑学中，设计师可能会将半圆柱融入他们的设计计划中，以创建美观的结构或功能空间。这种形状可以在拱门、圆顶甚至家具设计中看到，其中的曲线既提供支撑又具有视觉吸引力。此外，在工程学中，半圆柱通常用于管道和储罐的设计中，在这些领域中，理解流体动力学对于功能性至关重要。此外，半圆柱的研究超越了实际应用；它也是高级数学理论中的一个重要概念。在微积分中，例如，学习半圆柱的性质帮助学生掌握积分和体积计算的原理。通过探索形状如何相互作用和变化，学生能够更深入地理解空间推理和几何关系。总之，半圆柱是一个迷人的几何图形，它架起了简单形状与更复杂结构之间的桥梁。它独特的属性和应用使其成为数学和工程中的一个重要主题。通过掌握半圆柱的概念，人们不仅可以欣赏到它在数学上的重要性，还可以了解到它在日常生活中的实际用途。无论是在建筑、工程还是理论研究中，半圆柱继续成为激发创造力和创新的形状，提醒我们几何学在我们世界中的美丽。