You see, hummingbirds are not hypersonic, but they are maneuverable.

你知道，蜂鸟不是特音速。但是操纵性很好。

And it's pointed at the hypersonic glider.

用于拍摄特音速滑翔机。

They said six hypersonic missiles had been shot down.

他们表示击落了六音速导弹。

He said a Russian aircraft had launched the hypersonic missile from Russian airspace into Ukraine.

他说，一架俄罗斯飞机从俄罗斯领空向乌克兰发射了这声速导弹。

North Korea tested a " hypersonic missile" , according to the country's state media.

据鲜官方媒体报道，鲜试射了一“音速导弹”。

But there is some skepticism about whether Russia really has a working hypersonic missile.

但有人怀疑俄罗斯是否真的有一有效的音速导弹。

Russia says it's acquired a new type of nuclear capable hypersonic missile.

俄罗斯获得一种新型音速核导弹。

Russia's defense ministry says it's conducted a successful test of a hypersonic missile.

俄罗斯国防部表示，他们经成功测试了音速导弹。

But we collected more hypersonic flight data than in 30 years of ground-based testing combined.

但我们也收集了比过去30年间地面测试总和还多的数据。

Since then, we've actually flown aircraft or hypersonic vehicles that don't have pilots on board.

从那时起，我们实际上经驾驶过没有飞行员的飞机或音速飞行器。

We would think of that as hypersonic flight, much, much faster than the speed of sound.

我们将视为音速飞行，远远过音速。

Russia's ministry of defense earlier said it had used hypersonic missiles to destroy an ammunition warehouse.

俄罗斯国防部早些时候使用音速导弹摧毁了一个弹药仓库。

She added that the decision to make hypersonic weapons creates an imbalance that the department must deal with.

她补充说，研制音速导弹的决定会导致不平衡局面，这是美国国防部必须要予以处理的。

The launch of the hypersonic missile was North Korea's third round of missile tests this month.

音速导弹的发射是鲜本月进行的第三轮导弹试射。

A hypersonic missile, also known as a Hypersonic Glide Vehicle, can fly much faster than the speed of sound.

音速导弹，也被为音速滑翔器，飞行速度比音速快得多。

The Russian president has said the country's navy will receive hypersonic Zircon cruise missiles within the next few months.

俄罗斯总统表示，该国海军将在未来几个月内收到锆石音速巡航导弹。

Everhart said the time gained by using hypersonic spacecraft could keep the U.S. ahead in " the speed of war."

埃弗哈特说，利用音速飞船获得的时间可以让美国在“战争速度”方面保持领先。

And a meteoroid coming in at hypersonic speeds compresses the air in front of it a lot, heating it hugely.

一个流星体以音速飞来，会对它前面的空气进行很大的压缩，使大幅升温。

But even a hypersonic journey begins with a single step.

但即使是音速之旅，也是从第一步开始。

This eliminates air friction, allowing hypersonic speeds to be reached.

这消除了空气摩擦，可以达到音速。