The air flowing over a bird's wings curls upwards behind the wingtips, a phenomenon known as upwash.

鸟上方的气流在尖方向上盘旋，这种现象被称作气流上洗。

It is also wider with raked wingtips while retaining its basic structure and sweep.

它的尖也采用了掠设计，从而使机变得更宽，同保留了基本结构和掠角度。

And this comic is all about a bug called the glassy-winged sharpshooter.

而这本漫画讲述的是一种叫做玻璃尖头虫的昆虫。

We're actually 3 feet apart, 3ft wing-tip clearance, at 250 miles and hour, 3 ft apart.

我们实际上相距3英尺，尖间距3英尺，在每小250英里的速度下，仅相距3英尺。

The reason for the 777X's folding wingtips  is that they're a space-saving measure.

777X 折叠尖的原因是它们是一种节省空间的措施。

And then supposedly from watching buzzards and how their wingtips moved while they were in flight.

然据说通过观察秃鹰以及它们飞行尖的运。

These could feature a cap toe or wing tip design and would be a dark neutral color.

这些可能具有帽趾或尖设计，并且会是深色中性色。

Their wingtips are black, and their under parts  are a whitish or tan colour with dark bands.

它们的尖是黑色的，下部呈白色或棕褐色，带有深色条纹。

One of the unique features of the jet compared to other widebody commercial aircraft  is its folding wingtips.

与其他宽体商用飞机相比，这款喷气式飞机的独特之处之一是它的折叠尖。

An hour later I passed by again and all the butterfly was down except for the wing tips.

一个小， 我再次经过， 发现除了尖外， 所有的蝴蝶都掉了下来。

Oh, with the white wing tips?

白色尖的？

His wingtip shoes crunch on gravel.

他的尖鞋在砾石上嘎吱作响。

Two Argentine Skyhawk fighter jets slice through the South Atlantic sky, trails of white vapor tumbling from their wingtips.

两架阿根廷天空鹰战斗机划过南大西洋的天空，尖拖着白色的尾迹。

Because of big angle during landing, it may cause the wingtips or engines to hit the ground.

由于着陆角度大， 可能会导致尖或发机撞击地面。

And our friend, the glassy-winged sharpshooter, makes a return in the comic Captain Cicada and the Justice League.

我们的老朋友， 玻璃尖头虫，在漫画《蝉队长与正义联盟》中再度登场。

The broad-winged, shark-taloned bird of prey was clearly hunting some furry critter or another, a mouse perhaps or a rabbit.

那只宽尖如鲨鱼爪的猛禽显然在猎捕一些毛茸茸的小物，可能是老鼠或者兔子。

And how do you even measure the speed at which this glassy winged sharpshooter ejects its pee into the world?

那么，你如何测量这种玻璃尖头虫向外界喷射尿液的速度呢？

The plane won't automatically extend  the wingtips before take-off, though, with the task falling to the pilots.

不过，飞机不会在起飞前自展开尖，任务落在了飞行员身上。

If the wingtips didn't fold, the jet would  have a wingspan equivalent to the Boeing 747 and the Airbus A380.

如果尖不折叠，喷气式飞机的展将相当于波音 747 和空客 A380。

What do you make of the Boeing 777X's folding wingtips?

您如何看待波音 777X 的折叠尖？