It's caused by volatile organic compounds, or VOCs.

室内空气污染的源头是挥发性有机化物（简称为VOCs）。

It's like just they've been heated and they've lost a lot of their volatile elements.

就像被加热过的，就像挥发性成分。

Those chemicals fall under the broader umbrella of volatile organic compounds, or VOCs.

这些化学物质都属于挥发性有机物，也就是 VOCs 的范畴。

Some VOCs are known to cause health issues like headaches or liver and kidney damage.

已知的一些挥发性有机化物导致头痛或肝脏和肾脏损害等问题。

That's what gives smoke its sort of acrid, distinct smell.

挥发性有机化物使烟雾散发出刺鼻的独特气味。

With smoke, and air pollution, you also have volatile organic compounds.

出现烟雾和空气污染，你还吸入挥发性有机化物。

Volatile elements are those that can evaporate easily and they're for be lost when you heat up a rock.

挥发性成分是那些容易挥发的元素，是在加热石头的。

And some examples of volatile elements include water or potassium for example.

挥发性成分一些例子包括水或钾等等。

Both gasoline and diesel are volatile fuels, though gasoline is the more volatile of the two.

汽油和柴油都是挥发性燃料，尽管汽油的挥发性更强。

What the plants pump through the air is a mixture of chemicals known as volatile organic compounds, VOCs for short.

通过空气，植物输送的是一种挥发性有机化物的混物，简称 VOCs。

The tiny probe detects volatile chemical elements in concentrations that no one had thought possible this close to the sun.

这个微型探测器能探测到挥发性化学元素，在如此靠近太阳的地方，其浓度之高是没有人想到的。

Messenger's evidence of the volatiles on Mercury's surface and the unusual size of its core suggests an interesting new theory.

“信使号”关于水星表面的挥发性物质及其核心异常大小的证据表明一个有趣的新理论。

When plant leaves get damaged, whether by hungry insects or an invading lawn mower, they release plumes of volatile chemicals.

当植物叶子受到损伤，如被饥饿的虫子吃或者被除草机割，它们释放一缕缕挥发性的化学气体。

While volatility is inherent to the fuels by nature, the use of additives increases this volatility for better combustion characteristics.

虽然挥发性本质上是燃料固有的，但添加剂的使用增加这种挥发性，以获得更好的燃烧特性。

That, she explains, is because vanilla is one of the volatile flavour compounds present in breastmilk, as well as some formulas.

她解释说，这是因为香草是在母乳和一些配方奶粉中存在的挥发性风味化物之一。

Scientists have found that all kinds of plants give out VOCs when being attacked. It's a plant's way of crying out.

科学家发现，各种植物在受到攻击都释放出挥发性有机化物，这是一种植物的呼救方式。

Manmade compounds create a haze too, just not a pretty haze like plant VOCs do.

人造化物也产生雾霾，只是不像植物挥发性有机化物那样造成雾霾。

The analysis of these volatile organic compounds in our breath is called breath analysis.

对我们呼吸中这些挥发性有机化物的分析称为呼吸分析。

So the idea was to convert these volatiles into sounds.

所以我们的想法是将这些挥发性物质转化为声音。

Water, carbon dioxide, and volatile gases combine to create smoke.

水、二氧化碳和挥发性气体结产生烟雾。