All you need is a jetliner, a parabola and voila, you're weightless.

你需要的只是一架客机, 飞行个抛物线, 然后看看自己, 你已失重了。

An escape orbit is open — it doesn't come back — and is shaped like a parabola.

逃逸轨道是开的——它不会回来——形状就像抛物线。

The orbit is now a hyperbola, which is similar to a parabola, but is even more open.

这种轨道是条双曲线，类似于抛物线，但更加开。

But because gravity makes the ball's trajectory a parabola, the air pushing against the ball changes directions as it flies.

但是因为重力使球的轨迹呈抛物线，所以当球飞行时，推动球的空气改变了方向。

Instead of a parabola that just goes like this.

不是这样一个简单的抛物线。

Or you could even think of it as a three-dimensional parabola.

或者你可以将其想象成一个三维抛物面。

The Portuguese word comes ultimately from the late Latin noun parabola, meaning speech or parable.

葡萄牙语中的这个词最终源自晚期拉丁语名词“parabola”，意思是演讲或寓言。

I think it's a parabola, and after a parabolic move, I will not endorse it.

我认为这是一个抛物线走势，历抛物线式上涨后，我将不再予以支持。

As the market's going parabolic due to speculative buying, that's a total parabola.

由于投机性买入，市场正呈抛物线式上涨，这完全是典型的抛物线走势。

Remember, parabola is like what you see from a lamp, okay?

记住，抛物线就像灯照射出来的形状，明白吗？

Used to play with the parabolas myself.

我自己过去常常玩抛物线。

There are 31 parabolas per flight.

每次飞行有 31 条抛物线。

If Portuguese isn't in your wheelhouse, perhaps you'll recognize the influence of the Latin parabola in other tongues.

如果你不擅长葡萄牙语，也许你能从其他语言中认出拉丁语“parabola” 的影响。

These ellipses were so stretched out, however, that they could be approximated to an open-ended curve called a parabola.

然， 这些椭圆被拉得如此之长，以至于可以近似为一种称为抛物线的开口曲线。

Mathematically, the value of eccentricity varies between zero and one; with zero representing a circle and one transforming into another shape, called a parabola.

数学上，偏心率的值0和1之间变化，零代表一个圆，一个转换成另一种形状，称为抛物线。

And the trick here is that anything you throw into the air, neglecting air resistance, will travel in a perfect parabola.

这里的诀窍于，忽略空气阻力时，任何抛向空中的物体都会沿着一条完美的抛物线运动。

Curving surfaceward in a sharply changing parabola, the pilot overcorrected and had to wait to gather downspeed and then overcorrect it again.

飞行员以急剧变化的抛物线轨迹向表面偏移，修正过度，不得不等待减速后再一次过度修正。

The Greek mathematicians know the properties of the parabola and so could have directed the assembly of small mirror pieces into the parabolic shape.

希腊数学家知道抛物线的性质， 因此可以将小镜子碎片组装成抛物线形状。

Even something you wouldn't think of, like a high jumper, if you track their center of mass, it actually follows a perfect parabola shape.

甚至像跳高运动员这样你可能想不到的例子，如果你追踪他们质心的运动轨迹，实际上它会遵循一个完美的抛物线形状。

So we used our understanding of parabolas and from a side view, we used that to predict the final up and down position of the board.

因此， 我们运用了对抛物线的理解， 从侧面视角出发，利用这一知识预测了靶板最终的上下位置。