That shared, cooperative quest to achieve our highest aspirations is why we bring you together from around the world, to address challenges measured in microns, millimeters, leagues or light years.

这种我们的最高愿望而进行的共同合作的探索，是我们把你们从世界各地聚集在起，结局以微米、毫米、里格或光年单位的挑战的原因。

When astronomers talk about dust, they mean tiny grains a micron across.

当天文学家说到尘埃时，他们指的是直径微米的微小颗粒。

Why is there a constant isometric force below 2.2 to 2.0 microns?

什么在 2.2 到 2.0 微米以下会有恒定的等距力？

Wow. - Point five microns are stacked together very perfectly.

哇。- 5 微米，非常完美地堆叠在起。

The PM2.5 measurement means the particles are 2.5 microns or less in diameter.

PM2.5的测量的意思是颗粒物的直径小于或等于2.5微米。

The kind of average particle size or the kind of peak particle size went from 670 microns down to, like, 664, which is a pretty minimal change, to say the least, and sort of surface area didn't change that much.

平均颗粒大小或峰值颗粒大小从670微米下降到664微米，这是个很小的变化，至少可以说，表面面积没有多大变化。

But radio waves, which have wavelengths ranging from 100 microns to 100 kilometers, are much lower energy and can’t excite your eyes, so they are invisible to us.

然而，无线电波波长可介于百微米到百公里，能量较低，无法激起感光细胞作，所以不可见光。

It emerges from a nozzle that's rarely wider than 400 microns in diameter, and can produce a continuous filament roughly the thickness of a human fingernail.

墨水会从喷嘴挤出，喷嘴的直径般不会超过 400 微米，可以挤出连续不断的线丝，厚度和人的指甲差不多。

Above the size of L rotifers, however, farmers switch phylum and feed their charges crustaceans called brine shrimps, the smallest of which clock in at 400 microns.

然而，L号轮虫再往上，农民们换了，种被称“盐水虾”的甲壳类动物喂食，最小的盐水虾长度有400微米。

And 20 microns is a bit too big because a lot of dust is like cigarette smoke, it's half a micron or 0.3 of a micron.

而 20 微米有点太大了，因很多灰尘就像香烟烟雾，它是半个微米或0.3 微米。

But radio waves, which have wavelengths ranging from 100 microns to 100 kilometers, are much lower energy and can't excite your eyes, so they are invisible to us.

然而，无线电波波长介于百微米到百公里之间，能量较低，无法激起感光细胞作，所以不可见光。

The greatest health risk comes from what is known as PM 2.5, the range of fine particles that are less than 2.5 microns in diameter.

其中，对健康威胁最大的是pm2.5，即直径小于2.5μm的细颗粒物。

Particles with a diameter of 2.5 microns or smaller, or PM2.5, are especially dangerous: because of their tiny size, they can penetrate vascular tissue.

直径 2.5 微米或更小的微粒（ PM2.5）尤其危险：由于其尺寸极小，它们可以穿透血管组织。

And what they found was actually a wealth of particles—about half a micron in diameter, nearly spherical, and glassy-looking under the microscope.

结果他们发空气中际上包含大量直径约半微米，近乎球形，在显微镜下呈光亮透明的微粒。

The trick is building the regions small enough (about 100 microns across for the storage medium, and ten for the conductor).

其技巧是制造足够小的区域（存储介质大概100微米宽，导体10微米左右）。

We're really good at that, but it's actually very hard to make things from 10 microns to 1,000 microns, the mesoscale.

我们这方面做得很好，但在10到1000微米的范围内 制造物体是非常困难的，在这个中等尺度范围。

Through a series of cues that we actually don't really understand all that well, it can be like 100 microns.

通过系列的线索，我们际上并不是很了解，它可以是 100 微米。

Researchers added common shore crabs—Carcinus maenas—to tanks of seawater containing millions of tiny plastic particles, just 10 microns in diameter.

研究人员还表示常见的食草蟹—青蟹身体里所储备的海水中含有成千上万的塑料粒子，直径只有10微米。

As reference, your hair is 50 microns so this is point 3, it's a fraction of your hair.

作参考，头发的直径有50微米，所以只相当于头发的小部分。

(ie, smaller than five microns) that may carry viruses much farther through the air than droplets can manage.

（如小于5微米），这些颗粒携带病毒在空气中传播的距离可能远远超过飞沫所能达到的距离。