Well, maybe he wanted it To muffle the gun.

噢 他可能想用这儿声。

So now I work at the muffler shop. -Why?

所以现在我在一家(内燃机)声器店工作。-为什么？

You know, there's Passive Noise-Canceling, or Passive Noise-Reduction, which is effectively an earplug.

你知道，有被动声，或被动降噪，它是一个耳塞。

The earplugs, made by a firm that 3M bought in 2008, were distributed to troops during the conflicts in Afghanistan and Iraq, but the servicemen claim that the noise mufflers failed to prevent a loss of hearing.

这些耳塞由3M公司在2008年收购的一家公司制造，随后在阿富汗和伊拉克冲突期间分发给了部队，但军人们声称这些声耳塞无法防止听力损失。

You'll never hear from us again.

我们从此声匿迹。

So make sure that your muffler is solid.

因此，请确保您的声器是坚固的。

The collection of Route 66 giants became known as “Muffler Men.”

66 号公路巨人的集合被称为“声器人”。

Throughout the years he has changed the color, silver plating, changed motors, no mufflers.

这些年他改颜色，镀银，换发动机，去声器。

Without a giant  cosmic muffler between us and our closest star, what would we hear?

如果我们和最近的恒星之间没有巨大的宇宙声器，我们会听到什么？

But this is not an ordinary tank, this is what we call an anechoic tank.

但这并非普通的储水池，而是我们所说的声水池。

Okay, so one of the kind of miraculous things about an anechoic chamber is it allows you to hear something that you can't hear outside of the chamber.

好的，声室的一个神奇之处在于，它能让你听到在室外无法察觉的声音。

(Pulse) I've personally experienced an anechoic chamber, and it's a really wild experience that can completely change your perceptions about sound and silence.

（脉搏）我亲自体验声室，那是一种非常奇妙的体验， 可以完全改变你对声音和寂静的看法。

So an anechoic chamber's design is to reduce the amount of sound to just as absolute - close to absolute zero as possible.

因此，声室的设计就是将声音量降低到尽可能绝对值——接近绝对零。

The guy who makes a YouTube channel showing off his silenced 50 caliber or whatever machine gun that he mounted to a truck.

那个在YouTube开频道展示他装在卡车的声50口径机枪或其他什么机枪的人。

And people on the outside-- people that can help you disappear.

还需要外面接应的人--要帮我们声匿迹。

And they said, no, you know, we're not going to pay a lot for that muffler shop.

他们说，不，你知道的，我们不会为那家声器店付太多钱。

Without mufflers vehicles are pretty loud.

没有声器的车辆声音很大。

The muffler is the part of the vehicle that makes the engine quieter.

声器是使发动机更安静的车辆部件。

The Big Twin exhales through a dual muffler Akrapovic exhaust system, which is standard on our top-tier race replica bike.

Big Twin 通双声器 Akrapovic 排气系统呼气, 这是我们顶级赛车复制品自行车的标准配置。

Anechoic chambers are rooms that are acoustically treated to minimize sound to almost zero.

声室是经声学处理以将声音降至几乎零的房间。