An angle of 90 degrees is called a right angle.

九十度角叫做直角。

Your knees should be at a right angle with your feet flat on the floor.

你膝盖应在正确角度 且脚掌平放接触地面。

They're carefully aligned edge to edge at a right angle.

它们呈直角严丝合缝地对齐。

Only with the correct equipment coupled with right angles you can avoid the snag.

只有正确设备加上正确角度，你才能避免障碍。

I was so sure I had the right angle on this, Beth.

我本来那么确次有好转，贝丝。

This, I'm assuming is a right angle.

是直角。

So this right over here is a right angle.

所以现在角就是一直角。

Bertozzi called the field she created bioorthogonal chemistry—orthogonal means intersecting at right angles.

贝尔托齐称她创造领域为生物正交化学——正交意味着以直角相交。

So, when the area is struck at the right angle with enough force, something interesting happens.

所以，当角度恰当、力量充足撞击该区域时，有趣事情就发生。

The left should form at a right angle and the right knee should almost touch the floor.

左膝应呈直角，右膝应几乎触地。

As the herd approaches us, it swings round its front, at right angles, and makes off westward.

牛群接近时，在突然跑开，找到合适得角度就向西奔逃。

The two lines on the left intersect each other at a right angle which is 90 degrees.

左边两条线以90度直角相交。

He understood right angles and clear instruction manuals. Assembly models and drawings. Things one could draw on paper.

他理解直角和清晰产品说明，可以到纸上东西。

The awning had to be built at just the right angle, and all the pads had to be obscured.

遮阳篷角度要合适，所有护具都要遮住。

I mean, we don't make it like a sharp right angle.

我意思是，我们不把它剪成一尖锐直角。

A " right angle" is this square here, it means 90 degrees.

一“直角” 就是里正方形， 就是90度意思。

Now from extensive experience, our brains know they really should be rectangles and right angles.

现在，根据丰富经验，我们大脑知道它们确实应该是矩形和直角。

And this means the lower  right angle in this triangle is precisely theta.

意味着三角形右下角正好是θ。

I have to get the right angle.

我必须得到正确角度。

This is a right angle, so this is also 30.

是一直角，所以也是30度。