最后，科学家测量了由于行星的引力拖拉而产生的恒星摆动，这就是径向速度。
Finally, scientists measure the star's wobble due to the planet's gravitational tug, known as the radial velocity.
我们从圣塔莫尼卡码头出发，沿着弯弯曲曲，保留得很好的小径向海岸驶去。
We started out at the Santa Monica Pier and rode the curvy, well-maintained path that heads down the coast.
一组径向运河导致了这一结果。
小径向山顶蜿蜒盘旋。
对于径向节点，应该有1个。
设置渐变模式为径向(圆形)渐变 。
好，让我们来做一个关于，径向概率分布的题目。
OK. So let's actually go to a clicker question now on radial probability distributions.
我们从星期一开始讨论了，s轨道的径向概率分布。
We'd started on Monday talking about radial probability distributions for the s orbitals.
对于s轨道，你们会发现，所有的节点都是径向节点。
So, what you find with the s orbital, and this is general for all s orbitals is that all of your nodes end up being radial nodes.
某些情况下，从原点到终点沿径向走，可能更有意义。
In some cases, it is actually even making more sense maybe to go radially, start out from the origin to your end point.
这不过是圆的性质——径向垂直于圆，我来画完这张图吧。
That is a property of the circle that the radial direction is perpendicular to the circle. Actually, let me complete this picture.
记住我们可以把整体波函数，分解成径向部分和角向部分。
So, remember we can break up the total wave function into the radial part and the angular part.
你可以通过不同的途径向你的访问者介绍网站服务。
You can use different approaches to introduce your new web-service to your visitors.
让我们来想一想如果把它的，径向概率分布画出来是怎么样的。
So, let's go ahead and think about drawing what that would look like in terms of the radial probability distribution.
径向速度是一项搜寻行星技术，可以通过寻找恒星光线的摆动。
Radial velocity is a planet-hunting technique that looks for wobbles in a star's light, which can indicate the gravitational tugs of orbiting worlds.
这个s轨道的，径向概率分布公式，它对于球对称，的情形成立。
This is the radial probability distribution formula for an s orbital, which is, of course, dealing with something that's spherically symmetrical.
或者我们可以直接，看径向概率分布图，本身看看里面有几个节点。
Or we could just look at the radial probability distribution itself and see how many nodes there are.
对于径向节点，我们有2减去1减去0，所以有一个径向节点。
And in terms of radial nodes, we have 2 minus 1 minus 0, so what we have is one radial node.
近一段时间以来，中方通过各种途径向各方做了劝和促谈的工作。
In recent months, China has been working on relevant parties for peace talks through various means.
车轮通常是一个有许多径向辐条的大型木制车轮, ，但并不一定是用车轮。
The wheel was typically a large wooden wagon wheel with many radial spokes, but a wheel was not always used.
这个成分，是vcosθ,我们叫做径向速度-,等于-100，公里每秒。
So it is this component, v cosine theta - which we call the radial velocity-- that is minus 100 kilometers per second.
相似地如果我们看看，径向概率分布，我们会发现有一个完全相同的波节结构。
Similarly, if we were to look at the radial probability distributions, what we would find is that there's an identical nodal structure.
我们也可以考虑下3s轨道，我们之前看过它了，而且知道它有两个径向节点。
We can also take a look the 3 s, which we have looked at before, and we figured out that that should have two radial nodes.
径向速度法，即观察某颗行星环绕恒星的轨道所引起的恒星相对地球来往的速度变化。
The radial velocity method, which looks for changes in a star's velocity toward or away from Earth triggered by a planet's orbit around that star.
将使新饼图的边变得平滑，把饼图的径向分区涂上白色，并且饼图的内部都会成为白色。
The edge of the new pie chart is smoothed, the pie radial divisors are colored white, and the interior of the pie chart is made white.
但是，近年来天文学家通过径向速度法去发现或证实大量小到只有几倍的地球质量的行星。
But in recent years astronomers have used radial velocity to find or confirm a number of planets down to a few times Earth's mass.
新的行星是靠测量“径向速度”，或者恒星在周围行星的万有引力下摇摆的速度检测出来的。
The new planets were detected by measuring "radial velocity," or how fast a star wobbles depending on the gravitational pull from nearby planets.
当两个电极之间形成电场时，压电性物质便将电场转化为沿径向轴的机械压力，使纤维震动。
When an electric field is applied to the electrodes the piezoelectric material translates this into a mechanical strain along its radial axis, causing it to vibrate.
但测量行星的质量，天文学家通常还需要使用地球上最大的天文望远镜，来测算径向速度的耗时。
But to get the planet's mass, astronomers normally need to follow up with time-consuming radial velocity observations at some of the planet's biggest telescopes.
但测量行星的质量，天文学家通常还需要使用地球上最大的天文望远镜，来测算径向速度的耗时。
But to get the planet's mass, astronomers normally need to follow up with time-consuming radial velocity observations at some of the planet's biggest telescopes.
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