We have a parabola going downwards in one direction, and upwards in the other one.

我们得到一条在一个方向上向下，而在另一个方向上向上的抛物线。

It's, again, a parabola going downwards.

它同样是，开口向下的一条抛物线。

That is a parabola.

这就是一个抛物线方程。

It is this parabola and is pointing up.

这就是那个抛物面，它是开口向上的。

So, we should draw maybe this downward parabola.

我们可以画出这样的开口向下的抛物线。

See, it's the same with a parabola going upwards.

看，这跟一个开口向上的抛物线类似的。

This is a parabola and it is completely symmetric.

这是个抛物线,它完全是对称的

It's a parabola pointing downwards, and starting at one.

那是起点在1且开口向下的抛物线。

The resulting set of points in this case is a parabola .

这种情况所产生的一组点是抛物线。

We just parabola, you is the focal point and I am alignment.

我们就是抛物线，你是焦点，我是准线。

And this part is a parabola and this parabola here is horizontal.

这部分是条抛物线，抛物线这边是水平的。

This one, you would expect it to behave perfectly like a parabola.

这次你能预料到，它沿抛物线运动。

Don't look at that curve at just some dumb parabola, some dumb curve.

别老看那条曲线，别老看那些没用的抛物线、曲线。

It wasn't going into a parabola because I was shooting it straight up.

也不是沿一条抛物线轨迹，因为小球是竖直射出的。

So, try to see that the tennis ball is very close to an ideal parabola.

所以，试着看，网球是一个，比较理想的抛物线。

This is a parabola, so it's completely symmetric about the vertical, about p.

这是个抛物线，因此关于P点轴对称。

So, we have a parabola going downwards in one direction, upwards in the other one.

得到的是在一个方向上开口向下，而在另外的一个方向开口向上的抛物线。

It's a second-order equation in x, and is a parabola and a parabola has this shape.

这是一个x的二次方程，也是一个抛物线方程式,抛物线都长这样。

Life is like a parabola, the apex of the lucky, often is the beginning of doom.

人生就像一条抛物线，幸运的顶点，往往也是厄运的开端。

It's, of course, a parabola and I use this information that we have just derived.

毋庸置疑，是个抛物线，用我刚才得到的，这个已知信息。

The parabola would control air flow in a way that would lessen the shockwave, NASA says.

NASA表示，这一抛物线设计可以通过控制气流来减少冲击波的产生。

You're going to get a parabola under the influence of gravity and it comes down here again.

我们将会看到在重力作用下，产生一条抛物线，再一次落到这里。

It's important, you have to know that, so this is a parabola and this, here, is horizontal.

这点很重要，你们要知道，这是条抛物线，并且这里，是水平的。

In the absence of any air drag, I would get a nice parabola which will be completely symmetric.

在没有阻力的情况下，会得到一条抛物线，非常均衡的。

Such a parabola for the lowest point of people buy a house, buy a house of course, is the most appropriate time.

这样一个抛物线的最低点的人买房子，买房子当然是最合适的时间。

The number of calibration curve: apparatus can store 9 calibration curve, 5 for one line, 4 for binomial parabola.

校正曲线数：仪器可存储9条标定曲线，5条为一元一次直线，4条为二项式抛物线。

If there were no drag, then this, of course, would be a parabola, and the horizontal velocity would always be the same.

如果没有阻力，这应该是个抛物线，水平速度，也应该一样。

It is last seen by its rueful owner, who omitted to use a wrist strap, describing a perfect parabola on its way to the depths.

倒霉的失主忘了系上腕带，于是看着他的照相机在空中画了一条完美的抛物线后沉入水中。