theta

theta

美 ['θi:tə] 　英 ['θi:tə]

• n.希腊字母表的第 8 个字母
• 网络西塔；角度；时间递耗值

词形变化

复数：thetas  

英汉双解

英汉解释

n.	1. 希腊字母表的第八个字母

英英解释

n.	1. the eighth letter of the Greek alphabet, represented in the English alphabet as "th"

例句

And then, you would be looking at a piece of that spherical shell corresponding to small values of phi and theta.

然后在这个夹壳中找出一小块，它跟φ和θ有关。

If an anti-Y particle collided with a proton, said proton would turn into a theta particle and a kaon.

如果用一个反”Y“粒子碰撞一个质子，该质子将衰变成一个”θ“粒子和一个K中介子。

So, I cannot ask myself just how will it change if I change theta and do random things with a and b?

因此我无法提问下面这样的问题，如果我改变θ，同时对于a和b做随机的改变，它会怎样变化？

Of course, r goes all around the z axis, but I'm just doing a slice through one of these vertical half planes, fixing the value of theta.

当然，r可以围绕z轴转圈，但我只做了一个垂直的半平面，对于一个确定的θ来说。

So, it is possible to treat -1 as a constant input whose weight, theta, is adjusted in learning, or, to use the technical term, training.

所以，我们可以把-1看成一个常量输入，它的权系数theta在学习（或者用技术术语，称为培训）的过程中进行调整。

Well, let's look at a small piece of our cylinder corresponding to a small angle delta theta and a small height delta z.

考虑圆柱表面的一个小块，它由一个极小的角δθ，和一个极小的高度δz表示。

Well, you could call that the rate of change of theta with respect to theta with a constant.

你可以称之为，保持a不变，θ关于θ自身的变化率。

What you will do is you will look for a given theta what are the bounds of r to be in the region.

你要做的是，在给定θ的情况下，找出这个区域r的上下限是什么。

And, because the equation does not involve theta, it's all the same if I rotate my vertical plane around the z axis.

由于等式没有包含θ，所以可以任意旋转这个垂直平面，绕着z轴。

And of course, if you remember what x and y were in terms of r and theta, you can also keep doing this to figure out, oops.

如果你记得x、y对r、φ的转化方式，就可以继续往下了。

Theta level thought waves were combined with Pranic Chi energy and integrated and amplified into a unique crystalline 'manifestation' wave.

西塔水平的思想波结合普拉那—气—的能量，综合并扩大而成为独特的水晶「显化」波。

And so you can express derivatives either in terms of x, y or in terms of r and theta with simple relations between them.

表示它的微分，要么用x和y，要么用r和θ，它们之间有简单的关系。

And, let's say that we want to understand how the area depends on theta.

这是一个关于a，b，θ函数，我们想知道，面积是怎样依赖于θ的。

The goal is to see how things change when I change theta by a little bit.

我们的目标是来看看当我稍微改变θ时将会怎样变化。

Notice that when theta equals - if the object were here-- that you find that the u=mgR potential energy u equals mg R.

注意，当θ，如果物体在这里-，你会发现，势能。

So, we set this to be zero. Theta, well, we are very happy because we want to express things in terms of theta.

所以我们令它等于零，很好，我们很高兴，因为我们就是想用θ来表示。

The next states, theta brainwaves, are typically of even greater amplitude and slower frequency.

下一个状态时θ脑电波，代表更大的振幅和更小的频率。

OK, and the corresponding angle is going to be measured by theta.

对应的角度是由θ决定的。

Let's start with a simple example of an incline at an angle theta.

让我们以一个角度为，θ的斜坡为例。

And this is always the same, independent of the angle of theta, because gravity is a conservative force.

它一直相同，和角度θ无关，因为重力是常量。

Say, polar coordinates. Let's say that I have a function but is defined in terms of the polar coordinate variables on theta.

比如说极坐标，有一个函数，是根据极坐标θ定义的。

Since there is no acceleration in the y direction, the normal force must be also mg cosine theta.

既然在y方向上，没有加速度，法向力也等于mgcosθ

This vector is uniquely determined in three-dimensional space so you should be able to find phi and theta.

这个矢量是在三维空间中，确定的，唯一的，因此你们可以求出φ和θ

So we're going to get that theta double dot plus kappa times theta divided by Kappa, by the way, is the torsional constant.

所以我们会得到θ两点，+K*θ，顺便说一下，K，是扭力常数。

r Well, if I fix a value for theta, which means I chose an angle here, now I am shooting a ray from the origin in that direction.

的界限是什么呢？，What，are，the，bounds，for，r？，固定θ的值，也就是在这取个角度，沿这个方向，由原点发出一条射线。

You cannot get the polar coordinates of a center of mass just by taking the average of R and the average of theta.

不能仅仅通过求R和θ的平均值，来得到重心的极坐标。

In the theta state, we are resting deeply and still conscious, at the threshold of drifting away from or back into conscious awareness.

在theta（希腊字母的第八个字母）状态中，在游离或回到意识知觉的极限端，我们处于深度休眠而仍然有意识。

Here our function, well, it is not very complicated in x, y coordinates, but it is even simpler in r theta coordinates.

我们的函数，这函数在直角坐标系下并不太复杂，但在极坐标系下会更简便一些。

The argument structure and theta-marking properties of lexical items vary across syntactic categories.

词项的论元结构和题元指派的属性在句法种变化多样。

Theta states can be reservoirs of creativity and inspiration.

状态可视为创造力和灵感的仓库。

See, this is the same formula as the one over there, just dividing everything by partial theta and with subscripts little a.

这和那边的公式是一样的，只是通过偏θ和下标a把所有的事情分开，如果对你来说用这种方法更容易理解。

All right, let's suppose now that we increase the angle theta until the object starts to slide.

假设现在，我们扩大θ的角度，直到物体开始下滑。

Incidentally, our brainwave state also changes during sex - moving towards or into alpha and theta states.

顺便提一句，在性交时我们的脑电波也随之改变—双方会变得差不多或者呈α和θ波状态。

And, differentiate the right-hand side as a function of b and theta.

把右边当成b和θ的函数来做微分。

It is common to just use plain text, often a single character, as the content of the Content MathML token element ci (theta in Listing 1).

只使用纯文本（通常是单个字符）作为ContentMathML记号元素ci（清单1中的θ）的内容是很常见的做法。

And I remember when I last lectured 801, that was in 1993, - I derived that in class-- T2 and T1 as a function of this angle theta.

我记得上一堂课，是在1993年，我在课堂上推导了它-，和T1之间2，the，relation，between，T2，受θ影响的关系。

And let the velocity of the source I could put transmitter here, but we can drop that index and let this angle be theta.

使电磁辐射源的速度，我把发射机放这里，可以把指数下降，这是角度θ

So actually, we set this equal to zero. So, we have zero equals da equals cosine theta db minus b sine theta d theta.

实际上，我们让它等于零，因此我们有0=da=cosθdb-bsinθdθ

P And this is the moment of inertia about point P times alpha, and alpha is theta double dot.

点P的转动惯量，乘以α，现在α是θ两点。

OK, so in fact, what we found, if you want, is the rate of change of b with respect to theta.

实际上，我们所求出的，是b关于θ的变化率。