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。
Now, there's also spherical coordinates.
现在，考虑球坐标。
And yet, we know that the shape of the s orbital is spherical.
并且，我们知道S轨道是球状的。
So now we're going to triple integrals in spherical coordinates.
现在，在球坐标中进行三重积分。
There we want to think a tiny bit about spherical coordinates again.
我们需要再次考虑球坐标。
OK, let's see, who had seen spherical coordinates before just to see?
我看看，谁曾经学过球坐标么？
Think about the difference between a flat paper map and a spherical globe.
试想下平面地图和球形地球之间的区别。
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。
Wood... but the spherical sound box is fashioned out of a whole coconut shell.
木头……不过球形的音盒是整个椰子壳做的。
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。
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