Zero Gravity Corporation uses a modified Boeing 727, flying in parabolic motion to create multiple spurts of weightlessness.

零重力公司使用一架改装过波音727飞机，以抛物线运动方式飞行，创造出多种失重状态。

The shield curved up and then over, jamming into one of the Quinjet's rotors.

盾牌划出一向上抛物线，卡在了战斗机螺旋叶片上。

The problem is when the capsule moves from an elliptical orbit to a parabolic orbit.

棘手是，如何能让太空舱从椭圆形转到抛物线形。

We can get a taste of it on a parabolic flight, but it's just not the same as actually living and working in weightlessness up here, and it's not just fun but it's also very challenging.

我们可以在抛物线飞行中体验一下，但这和在失重状态下活和工作是不一样，这不很有趣，而且也很有挑战性。

For three weeks, they practiced and performed as the plane did parabolas climbing until it goes over the hump, creating 27 seconds of weightlessness-time to open luggage and release a zillion balls.

他们为此训练了3周, 在飞机开始抛物线攀升, 直到已经平稳过关, 创造出27秒失重状态后, 是时候打开行李, 开始一段震撼人心表演了。

Having a round head with a parabolic shell, the 15-cm-long species looks cuter than previously found eurypterid species, said Wang Han, a major participant in the research and a Ph.D. student with the institute.

这项研究主要参与者、该研究所博士王晗说，这种 15 厘米长物种有着圆形头部和抛物线形外壳，看起来比以前发现板足鲎更可爱。

An orbit with an eccentricity greater than one is no longer an ellipse but a parabola if e is equal to one a hyperbola if e is greater than one.

偏心率大于 1 ，如果 e 等于 1，它就不再是椭圆而是抛物线，如果 e 大于 1，则是双曲线。

It's being tested on parabolic flights, where aircraft briefly create weightlessness, giving scientists a chance to take the workout for a spin around the stratosphere.

这项设备正在抛物线飞行中进行测试，这种飞行会短暂制造失重环境，让科家有机会在平流层中测试设备。

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

在数上，偏心率值在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 most of our life looks like this around this straight base level. It's very difficult to get an upward trajectory.

人多数时候，幸福感都是在基准线上下波动，获得上升抛物线很难。

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

但是因为重力使球迹呈抛物线，所以当球飞行时，推动球空气改变了方向。

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

这种是条双曲线，类似于抛物线，但更加开放。

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

你需要只是一架客机, 飞行个抛物线, 然后看看自己, 你已经失重了。

So, it means to move from an elliptical orbit to a parabolic orbit?

那么，就意味着需要从椭圆形转到抛物线形？

Their orbits can be extremely long; they start their fall from so far away, they swing around the Sun at nearly escape velocity, and their orbits are close to being parabolic.

它们公转可以非常长；它们从极其遥远地方开始下落，以近乎逃逸速度围绕太阳旋转，而且它们公转接近一个抛物线。

An object moving along a path controlled by gravity is said to be in orbit, and there are many different kinds: straight lines, circles, ellipses, parabolae, and hyperbolae.

在引力控制下运动物体被称为在进行运动，而有许多不同种类：直线、圆、椭圆、抛物线和双曲线。

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

逃逸是开放——它不会回来——形状就像抛物线。

The metal powder is in a container at the beginning of the parabolic flight.

金属粉末在抛物线飞行开始时位于容器中。

Instead of a parabola that just goes like this.

而不是这样一个简单抛物线。

I went on a plane that does parabolic trajectories.

我坐过一架飞行迹呈抛物线飞机。