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

想让超音的票比亚音的票价便宜一点。

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

超音描述了大于音的度。

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

现代飞机的度是音的85%，而“喷火”的度是音的96%-97%。

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

首先，6.7 马赫意味着音的 6.7 倍。

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

唯一能以超过音的度运送乘客的民用飞机是和式飞机。

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倍音的武器。

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

声音显然是以音传播的，对吧？

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

瑞银认为超音的前景一片大好。

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

接下来，让们了解一下国国家航空航天局是如何致力于将商业度提升到超音的吧。

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，几次飞接近2马赫，是音的两倍。

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音更快的客机。

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”的星距离地球约 520 光年，拥有超音的高喷流风，而这是们前所未见的。

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

虽然音不是恒定的，但通常有多快？

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

它的传播度是音的几倍。

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

高超音导弹的发射是朝鲜本月进的第三轮导弹试射。

Now, he was studying subsonic substance all day.

现在他每天都在研究亚音的物质。

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

比如可在音度下充气的减装置。

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音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? 那晚有超音队的比赛。

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

飞度超过音是非常昂贵的。