And second is microscopic carbon particles.

其次是微观的碳粒子。

Microscopic particles in the air can affect breathing and cause other problems.

空气中的微粒可影响呼吸，并引发其他问题。

The mineral particles found in soil range in size from microscopic clay particles to large boulders.

依体型而论，土壤中的矿物颗粒从微土壤颗粒到大体积卵石。

These are microscopic particles that people exhale just by breathing and speaking.

这些是人们仅通过呼吸和讲话即可呼出的微小颗粒。

They're covered in microscopic particles of shrapnel known as " war sand" .

它们被称为“战争沙子”的弹片微粒覆盖。

She and her colleagues study microscopic airborne particles, so normally we don't collect during rain.

她和同事们研究只有 显微镜下才可见的的大气微粒，因此通常，我们不会在下雨时收集。

These microscopic particles increase the risk of respiratory and cardiovascular prob- lems, especially in older people.

这些微粒会增加患呼吸系统和心血管疾病的风险，特别是老年人。

These microscopic particles are small enough to lodge deep into the lungs and pass onto other organs.

这些微小的颗粒足够小，可以深入肺部，然后进入其他器官。

What are these colorful microscopic particles?

这些五颜六色的微观粒子是什么？

A study published in June found that a person, on average, inhales or swallows at least 74,000 microscopic particles of plastic each year.

今年6月发表的一项研究发现，一个人每年平均吸入或吞咽至少7。4万颗塑料微粒。

The system can do little about plastic that has fragmented into microscopic particles, but these make up just 8% of plastic in the gyre.

该系统对那些已经分解为微型颗粒的塑料收效甚微，但这类塑料仅占环流垃圾的8%。

That's because, in order to form clouds, moisture in the air needs microscopic particles to glom onto like airborne dust, sea salt, or pollution.

这是因为，为了形成云，空气中的水分需要依附在微粒中，像空气中的尘埃，海盐，污染物。

Again, this snake is not being rude, it is actually tasting the air—collecting microscopic particles which it can analyze using a special organ in the roof of its mouth.

并不是这条蛇不讲礼貌，它们只是在尝空气，通过收集空气中极小的微粒，然后利用其上颚处的特殊器官来分析。

There they remained and in time grew into baby oysters called seed or spat. The spat grew larger by drawing in seawater from which they derived microscopic particles of food.

它们会呆在那儿并逐渐长成小牡蛎。我们称之为种子或贝苗。贝苗吸进海水中的微小生物作为食物从而越长越大。

Any plastic that's smaller than a few micrometers is called a nanoparticle, and research has found that these microscopic particles can even pass through biological barriers, such as cell membranes.

小于几微米的塑料可被称为纳米微粒，研究发现这些微小颗粒可穿过类似细胞膜的生物屏障。