Only galaxies with a spherical bulge—like component appear to accommodate supermassive black holes.
只有拥有球形膨胀物质的星系才可能容纳超大质量的黑洞。
It is amazing that this ultra-modern TV tower combines ancient concepts such as the spherical pearls, with technology, commerce, recreation, educational and conference facilities of the 21st century.
令人惊叹的是，这座超现代的电视塔将古老的概念，如球形的珍珠，与21世纪的技术、商业、娱乐、教育和会议设施相结合。
Nuclei with closed-shell have spherical symmetries.
闭壳核具有球对称性。
The motion of spherical pendulum in z-direction is described by nonlinear oscillation equation.
用非线性振动方程描述了球摆在 z 方向上的运动。
So now we're going to triple integrals in spherical coordinates.
现在，在球坐标中进行三重积分。
But let's do it in spherical coordinates because that's the topic of today.
但我们用球坐标来做，因为这才是今天的主题。
So, in fact, it simplifies quite a bit if you do it in spherical coordinates.
事实上用球坐标，简化了式子。
That means they contain spherical nodules a few millimetres across, known as chondrules.
这意味着它们含有直径数毫米的球形岩球（或叫做陨石球粒，chondrule）。
The refinery fire sent a plume of thick black smoke from blazing spherical storage tanks.
从燃烧的炼油厂球形储藏罐中冒出一股黑色的浓烟。
I leap, I spin, I navigate the circumference of each spherical planet, toying with gravity.
我跳起来，旋转，绕着每个星球的圆周行进，玩笑般的对付着地心引力。
And, now we have to learn about spherical coordinates, which you will see are a lot of fun.
今天我们来学习下球坐标，这是个很有意思的东西。
So the idea of spherical coordinate is you're going to polar coordinates again in the rz plane.
所以说球坐标系,其实就是在rz平面再建立一个极坐标。
The spherical model is better-suited when distances are further apart and more accuracy is needed.
当两点之间的距离相隔很远和要求更高的准确度时，需要使用球面模型。
We have rectangular coordinates, we have cylindrical coordinates and we have spherical coordinates.
我们有直角坐标系，有柱坐标系和球坐标系。
The splot command is Cartesian by default but can also support spherical and cylindrical coordinates.
splot命令默认使用的是笛卡儿坐标系，不过也可以支持球面或柱面坐标系。
The spherical design features a handle that allows the tub to be easily wheeled to a water source.
圆形加手柄设计方便将其滚至水源点。
So, if you are asked to find the average distance from the origin, spherical coordinates can be interesting.
如果你想求到中心的平均距离，球坐标还是不错的。
And now, we're going to try to find the volume of that spherical cap again but using spherical coordinates instead.
现在来求下被切出的球冠的体积，我们用球坐标来求。
The Chembot is a vaguely spherical structure made of soft triangular panels, each of which is filled with particles.
“化学机器人”大致上呈球形结构，由充满微粒的柔软的三角面板构成。
Raindrops are not shaped like a teardrop (as they are almost always depicted in drawings)? They are actually spherical.
雨滴和泪珠的形状其实是不一样的，虽然大多数情况下它们都被描述成一样的，可事实上它们是球形状的。
The laser trap can keep a tiny spherical sample - measuring only a millimeter across - levitated so experiments can be done.
激光阱能使一个直径仅1毫米的微小的球形样品保持悬浮，这样就可以做实验了。
The laser trap can keep a tiny spherical sample — measuring only a millimeter across — levitated so experiments can be done.
激光阱能使一个直径仅1毫米的微小的球形样品保持悬浮，这样就可以做实验了。
After all, only with the correct parameters that convert redshift to position would the reconstructed distribution be spherical.
毕竟只有在正确的将红移变换为位置的参数下，重建结果才会是一个球形。
Surrounding the Milky Way are thousands of spherical globular star clusters containing some of the oldest stars in the Universe.
上千球状星团围绕着银河，其中包含一些宇宙中最老的星星。
In other cases, a spherical model is used, and the primary distance calculation used is the great-circle distance (see Resources).
在其他情况下使用球面模型，所使用的主要距离计算为大圆弧长(参见参考资料)。
Now although sunlight indeed travels along straight lines, the projections of these lines onto the spherical sky are great circles.
虽然阳光呈直线照射，但光线在球型天空的投影却是巨大的圆形。
On our spherical Earth, gravity pulls "down" us toward the planet's center of mass. So on a flat surface, we naturally stand up straight.
在我们地球上，重力会把我们拉向星球的质量中心，因此在平坦的地表，我们自然站得很直。
A cube with the same volume as the spherical Earth would have a side 10, 000 km (6, 400 miles) long so the corners are 8700 km from the center!
和球形“地球”具有同等体积的立方体的每个边长应当是10000公里，每个顶点到立方体中心的距离是8700公里！
In his new paper, Dokuchaev has looked at stable circular orbits as well as spherical, non-equatorial orbits for photons at the inner boundary.
在Dokuchaev的这篇新论文里，他既考虑了光子在内边界的稳定圆轨道，也考虑了球形非赤道面轨道。
We are finding a parametric equation for the sphere using two variables phi and theta which happen to be part of the spherical coordinate system.
我们建立有两个变量φ和θ的球面的参数方程,它们恰好是,球坐标系统的一部分。
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