Surveyors measure two points on the ground and from each point they measure the angle between them and the top of the mountain to give them a triangle.

量员在地量两个点，并从每个点量它们与山顶之间的夹角，从而得到一个三角形。

If you were to measure this angle right over here, you would get theta.

这里已知斜同水平的夹角是θ 未来的视频中 我们会明确这个角为30度 45度等等。

The farther away an object is, the angles between the light rays entering our eyes are smaller, and our lens doesn't need to bend them as much, so tiny muscles relax and flatten it.

物体离我们越远，照进眼睛的光线之间的夹角越小，晶状体不需要弯曲那么多，因此微小的肌肉放松，拉平水晶体。

The Earth spins on an axis that's tilted 23.5 degrees from vertical.

地球绕着地轴自转，地轴与垂直轨道平的直线的夹角为 23.5 度。

Harry watched lazily as Professor Trelawney began to point out the fascinating angle Mars was making to Neptune.

哈利懒洋洋地看着，特里劳妮教授开始讲解火星与海王星形成的奇妙夹角。

Since we just saw that this change vector has a constant magnitude, the only way for this dot product to stay the same is if the angle it makes with that collision line stays the same.

由我们刚刚看到这个变化向量的大小是恒定的，点积保持不变的唯一方法就是它与碰撞线形成的夹角保持不变。

Using the same basic principles, we can see that the difference between the shadow angles is the angle between our positions 35 degrees, or just about a 10th of the way around the globe.

利用同的基本原理， 我们可以看出， 影子角度的差异即是我们位置间的夹角，为35度，大约地球周长的十分之一。

The repulsion between the unbonded pairs is even stronger than repulsion between the shared pairs, so the two hydrogens get pushed a little further to an angle of 104.5 degrees.

未成键电子对之间的斥力甚至强共享电子对之间的斥力，因此两个氢原子被稍微推得更远， 形成104.5度的夹角。

The flux, you’ll recall, is equal to the magnetic field times the area, times the cosine of the angle between the magnetic field and a line perpendicular to the loop.

磁通量等磁场乘以积，再乘以磁场与垂直回路的直线之间的夹角的余弦值。

The angle for the side of the Gaussian cylindrical surface is between a  horizontal electric field and the direction of any dA on the side which is always 90 degrees.

高斯圆柱侧的夹角是在水平电场和侧任意dA方向之间的角度，这个角度始终是90度。

Now, while Earth's axis is currently around 23.5 degrees off vertical, over the last million years, it has varied between 22.1 and 24.5 degrees.

目前， 地球的自转轴与垂直方向的夹角约为23.5度，但在过去一百万年间， 这一角度在22.1度到24.5度之间波动。

We imagine automatically that there are 90 degrees between the ascendant, where the sun rises, and the midheaven, where it culminates, roughly around noon.

我们通常会自然而然地认为，升点（太阳升起的方位）与天顶（太阳大致在正午时分达到最高点的位置）之间存在90度的夹角。

But the farther away from the equator you go towards the poles, the sun's angle to the horizon gets shallower and shallower.

但是， 你从赤道向两极移动时，太阳与地平线的夹角会变得越来越小。

He had certain rules like, you know, you can only have 45 degree angles or 90 degree angles to link places.

他有一些规定， 比如你知道的，连接地点只能使用45度或90度的夹角。

The first is that you want the angle of your rock relative to the water to be about 20 degrees.

首先，你希望石头与水的夹角约为20度。

The angle of a light ray after it passes from one medium to another is called the angle of refraction, and it's related to the angle of incidence by Snell's Law.

光线从一种介质射入另一种介质后的夹角称为折射角，根据折射定律它与入射角有关。

Table 5 lists parameters such as tunnel–load spacing, included angle, and tunnel buried depth.

表 5 列出了隧道-负载间距、夹角和隧道埋深等参数。

Well, calling the angle between the mirrors theta, the answer here is however many times you can add theta to itself before you get more than halfway around the circle, which is to say more than pi total radians.

好吧， 设两镜子之间的夹角为θ，答案就是你可以将θ加到自身的次数， 直到总和超过半圆，也就是超过π弧度。

F3, at an angle of, we'll call it Fi, so the angle from this horizontal line here is Fi.

F3，在一个角度，我们称它为 Fi，所以这里与这条水平线的夹角是 Fi。

The path difference is equal to the width of the slit, D, times the sine of the angle between the point on the screen and a line straight from the slit to the screen.

路径差等狭缝的宽度 D 乘以屏幕的点与从狭缝到屏幕的直线之间的夹角的正弦值。