spherical shell

简明释义

球壳

英英释义

例句

1.The physicist demonstrated how a charged spherical shell (球壳) creates an electric field outside of it.

物理学家演示了带电的spherical shell (球壳) 如何在其外部产生电场。

2.In the lab, we used a spherical shell (球壳) to study the properties of sound waves.

在实验室中，我们使用spherical shell (球壳) 来研究声波的特性。

3.The model of the Earth can be simplified as a spherical shell (球壳) with varying densities.

地球的模型可以简化为一个具有不同密度的spherical shell (球壳)。

4.To calculate the gravitational force, we treat the planet as a spherical shell (球壳).

为了计算引力，我们将行星视为一个spherical shell (球壳)。

5.The spherical shell (球壳) in this experiment helps isolate the internal reactions from external influences.

这个实验中的spherical shell (球壳) 有助于将内部反应与外部影响隔离开。

作文

In the field of physics, particularly in discussions about gravitational fields and electrostatics, the concept of a spherical shell (球壳) is fundamental. A spherical shell is defined as a hollow sphere with an inner and outer radius, where the material exists only in the thin layer between these two radii. This structure is significant because it allows physicists to simplify complex problems involving mass or charge distribution. For instance, when considering the gravitational field outside a spherical shell, one can treat the entire mass of the shell as if it were concentrated at its center. This principle is derived from Newton's law of gravitation, which states that a spherical shell exerts the same gravitational force on a particle located outside it as a point mass located at its center would. Moreover, the properties of a spherical shell extend beyond gravity; they also apply to electrostatics. According to Gauss's law, the electric field outside a uniformly charged spherical shell behaves similarly to that of a point charge. This means that for any observer positioned outside the spherical shell, the electric field will be the same as if all the charge were concentrated at the center. This makes calculations significantly easier, allowing scientists to analyze systems without delving into complicated integrals. In practical applications, spherical shells are found in various engineering and technological designs. For example, in the construction of satellites, the outer casing often resembles a spherical shell. The shell provides structural integrity while minimizing weight, which is crucial for space travel. Additionally, in acoustics, spherical shells are used to create soundproof environments or to focus sound waves for various applications. The geometry of a spherical shell allows for unique properties of wave propagation, making it a subject of interest in both theoretical and applied physics. Furthermore, the study of spherical shells has implications in cosmology. The universe can be thought of as having a spherical shell structure when considering certain models of cosmic expansion. Understanding how mass and energy are distributed across this spherical shell can help scientists make predictions about the fate of the universe. In conclusion, the concept of a spherical shell (球壳) is not merely an abstract idea but a practical tool that aids in understanding various physical phenomena. From gravitational fields to electrostatics, and even in engineering and cosmology, the spherical shell serves as a vital model that simplifies complex interactions. As students and researchers continue to explore the depths of physics, the spherical shell will undoubtedly remain a key topic, illustrating the beauty and intricacy of the universe we inhabit.

在物理学领域，特别是在讨论引力场和静电学时，“spherical shell（球壳）”的概念是基础性的。spherical shell 被定义为一个中空的球体，具有内半径和外半径，其中材料仅存在于这两个半径之间的薄层。这种结构之所以重要，是因为它允许物理学家简化涉及质量或电荷分布的复杂问题。例如，当考虑到外部的spherical shell的引力场时，可以将整个壳的质量视为集中在其中心。这一原理源自牛顿的引力定律，该定律指出，一个球壳对位于其外部的粒子施加的引力与位于其中心的点质量所施加的引力相同。此外，spherical shell的性质不仅限于引力；它们同样适用于静电学。根据高斯定律，均匀带电的spherical shell外部的电场行为类似于点电荷。这意味着，对于任何位于spherical shell外部的观察者而言，电场将与所有电荷集中在中心时的电场相同。这大大简化了计算，使科学家能够分析系统，而无需深入复杂的积分。在实际应用中，spherical shell可以在各种工程和技术设计中找到。例如，在卫星的构造中，外壳通常呈现出spherical shell的形状。该壳提供了结构完整性，同时最小化了重量，这对太空旅行至关重要。此外，在声学中，spherical shell被用来创造隔音环境或聚焦声波以用于各种应用。spherical shell的几何形状允许波传播具有独特的性质，使其成为理论和应用物理的一个研究对象。此外，对spherical shell的研究在宇宙学中也有重要意义。当考虑到某些宇宙扩展模型时，宇宙可以被视为具有spherical shell结构。理解质量和能量在这个spherical shell上的分布可以帮助科学家预测宇宙的命运。总之，spherical shell（球壳）的概念不仅仅是一个抽象的理念，而是一个实用工具，有助于理解各种物理现象。从引力场到静电学，甚至在工程和宇宙学中，spherical shell作为一个重要模型，简化了复杂的相互作用。随着学生和研究人员继续探索物理学的深度，spherical shell无疑将继续成为一个关键主题，展示我们所居住宇宙的美丽和复杂性。