spherical shell

基本解释

To insure the safety of the pressurized spherical shell of the deep manned submersible, the low cycle fatigue is analyzed.
为了确保载人潜水器载人球壳的安全性，必须进行载人球壳的低周疲劳寿命分析。
To solve the differential equations, we divide the sphere into two parts: inner part— a sphere with small radius and outer part— a spherical shell.
在微分方程求解过程中，把整个球体分成两部分：内部是球心附近的一个小球，外部为一球壳。
a perfectly spherical shell dr at some distance, thickness, d r, dr we talk about it as 4 pi r squared d r, so we just multiply that by the probability density.
在某个地方的完美球型壳层,厚度，我们把它叫做4πr平方，我们仅仅是把它,乘以概率密度。

So, what we can do to actually get a probability instead of a probability density that we're talking about is to take the wave function squared, which we know is probability density, and multiply it by the volume of that very, very thin spherical shell that we're talking about at distance r.
我们能得到一个概率,而不是概率密度的方法,就是取波函数的平方，也就是概率密度，然后把它乘以一个在ｒ处的,非常非常小的,壳层体积。
麻省理工公开课 - 化学原理课程节选
a perfectly spherical shell dr at some distance, thickness, d r, dr we talk about it as 4 pi r squared d r, so we just multiply that by the probability density.
在某个地方的完美球型壳层,厚度，我们把它叫做4πr平方，我们仅仅是把它,乘以概率密度。
麻省理工公开课 - 化学原理课程节选

This book, which describes the descendants of a civilisation that has converted the material in its planets into a giant ringlike structure around its sun, was inspired by Freeman Dyson's idea that a truly technologically advanced species would endeavour to capture as much light as possible by building a spherical shell around its central star.
ECONOMIST: Is it time for a new approach to finding extraterrestrials?

球壳
The type of load have great influence on limit load and this influence mainly lead by the effect on radial moment mr . And the limit load of shallow-spherical shell decrease with c~2 increases, while increases whenαdecrease.
不同荷载类型对扁球壳的极限荷载有较大影响,这种影响主要体现在对径向弯矩mr的影响上;扁球壳的极限荷载随着几何特征值c~2的增大而减小,随着拉压屈服极限比α的减小而增大。
物理学
球壳