EPA officials said early last year they would begin the process of setting limits on two of the chemicals, PFOA and PFOS.

美国环保署官员去年早些时候表示，们将开始对PFOA（全氟辛酸）和PFOS（全氟辛烷磺酰基化合物）这两种化学品进行限制。

And how do all of those signals result in the high-octane sensations that we know as " stress" ?

所有这些信号是如何导致我们所知的高辛烷值感觉“压力”的？

You might… and you could be the… well, why do you buy low-octane gas?

你可能......而且你可能是......那，你为购买低辛烷值汽油？

All this is appealing to the high-octane end of finance.

所有这一切都吸引了金融业的高辛烷值端。

The United States Navy used the statistics of the law of averages to buck up the morale of their men. One ex-sailor told me that when he and his shipmates were assigned to high-octane tankers, they were worried stiff.

美国海军使用平均法则的统计数据来鼓舞们士兵的士气。一位前水手告诉我，当和的船员被分配高辛烷值油轮时，们非常担心。

So, but with the size of something like a hydrocarbon chain that's short for gasoline, it's like octane is like, I think about the biggest that is not going to have that much of an effect.

所以，对于像汽油这样的短碳氢化合物链来说，比如辛烷，我认为这是最大的一种， 不会对凝固点产生太大影响。

So alkanes with 5 to 18 chains of carbon atoms like octane and gasoline are liquids at room temperature and those with more than 18 carbon atoms like paraffin or other waxes are solids.

因此，具有 5 18 碳原子链的烷烃（如辛烷和汽油）在室温下是液体，而那些具有超过 18 碳原子的烷烃（如石蜡或其蜡）是固体。

Recovery technology aims at helping athletes bounce back from the intense training and activity their bodies go through, and make the most of those high octane workouts.

恢复技术旨在帮助运动员从们的身体经历的高强度训练和活动中恢复过来，并充分利用这些高辛烷值的锻炼。

Using the wrong type of gas, with a number that’s too low or too high, can be worse for your engine, the environment, and your wallet.

使用错误类型的汽油，无论是辛烷值过低还是过高， 都会对发动机、环境和你的钱包造成更大的伤害。

'cause here comes some premium 91 octane knowledge.

" 因为这里有一些优质的91辛烷值知识。

We live in a high-octane world – always on the go, racing from one task to another.

我们生活在一高辛烷值的世界——总是在旅途中，从一项任务跑另一项任务。

My energy isn't easily contained, and I've been called by both men and women intense, high-octane, aggressive.

我的能量不容易被控制，男人和女人都称我为激烈、高辛烷值、好斗的人。

I can't wait to go on so many other high octane adventures with you in the future.

我迫不及待地想在未来与您一起进行许多其的高辛烷值冒险。

After having used Octane Blast, Xiao Yan's whole body was like a sponge which was suddenly squeezed of its water.

在使用了辛烷爆裂后， 萧炎全身就像一块突然被挤干的海绵。

So when we put it all together, this compound is called 4 ethyl octane.

所以当我们把它们放在一起时， 这种化合物叫做 4 乙基辛烷。

It does have caffeine but it doesn't have the same amount of octane that coffee does.

它确实含有咖啡因，但辛烷值与咖啡不同。

They all believed that if a tanker loaded with high-octane gasoline was hit by a torpedo, it exploded and blew everybody to kingdom come.

们都相信，如果一艘满载高辛烷值汽油的油轮被鱼雷击中，它就会爆炸，把所有人都炸飞。

But if it's mostly like octane and you put some water in the octane, I think your freezing point would come up.

但如果汽油主成分是辛烷， 而你又在其中加入了一些水，我想你的汽油凝固点会升高。

The only difference is that heptane, with 7 carbons, is really unstable, whereas octane, with 8 carbons, is super stable.

唯一的区别是，含有7碳原子的庚烷非常不稳定，而含有8碳原子的辛烷则极其稳定。

But low-octane engines don’t compress enough for high-octane fuels, and there isn’t enough time between the spark and the gas being swept out of the chamber for all that fuel to be used up.

但低辛烷值的发动机无法充分压缩高辛烷值的燃油，而且从火花产生燃油被排出气缸的时间太短，不足以完全燃烧掉这多燃油。