I want to get to the point where a supersonic ticket is actually cheaper than subsonic.

我想让超的票比亚的票价便宜一点。

Supersonic describes speeds that are greater than the speed of sound.

超描述了大于的度。

The modern airliners fly 85% the speed of sound, they've got Spitfires flying at 96,97% the speed of sound.

现的度是的85%，而“喷火”的度是的96%-97%。

So first off, Mach 6.7 means that's 6.7 times the speed of sound.

首先，6.7 马赫意味着的 6.7 倍。

The only civilian jet to ferry passengers faster than the speed of sound was the Concorde.

唯一能以超过的度运送乘客的民用是和式。

China is also investing in new technologies, including weapons that would fly at five times the speed of sound.

中国还投资了新的科学技术，包括度可达5倍的武器。

The sound is obviously propagating at the speed of sound, right?

声显然是以传播的，对吧？

UBS, a bank, thinks supersonic travel has a future.

瑞银认为超行的前景一片大好。

Next, we're looking at how NASA is aiming to take commercial travel to supersonic speeds.

接下来，让我们了解一下美国国家航空航天局是如何致力于将商业行度提升到超的吧。

That happened in December 1953, after a few flights approaching Mach 2, twice the speed of sound.

这发生在1953年12月，几次行接近2马赫，是的两倍。

It has plans to develop a passenger airplane that can travel faster than the speed of sound.

这家公司计划开发一种比更快的客。

WASP-127b, which is about 520 light-years away, has supersonic jet-stream winds unlike any we've seen before.

这颗名为“WASP-127b”的行星距离地球约 520 光年，拥有超的高喷流风，而这是我们前所未见的。

While not constant, the speed of sound is typically how fast?

虽然不是恒定的，但通常有多快？

It travels as fast as several times the speed of sound.

它的传播度是的几倍。

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

高超导弹的发射是朝鲜本月进行的第三轮导弹试射。

Now, he was studying subsonic substance all day.

现在他每天都在研究亚的物质。

Things like inflatable drag devices, that we could inflate at the speed of sound.

比如可在度下充气的减装置。

The spangled tracer swung lazily up into the sky just below the speed of sound.

闪闪发光的曳光弹以略低于的度懒洋洋地升上天空。

Well, what about Thursday night? I mean, they're playing the Sonics.

那星期四怎么样? 那晚有超队的比赛。

It's very expensive to fly faster than the speed of sound.

行度超过是非常昂贵的。