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.

这种为实现我们最高愿望而进行共同合作探索，是我们把你们从世界各地聚集在一起，结局以微、毫、里格或光年为单位挑战原因。

We have at least… at least 100 micrometres of growth per year.

我们每年至少有100微长。

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

当天文学家说到尘埃时，他们指是直径一微微小颗粒。

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

为什么在 2.2 到 2.0 微以下会有恒定等距力？

Nanoplastics are less than 1 micrometer in size.

纳塑料尺寸小于 1 微。

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

哇。- 5 微，非完美地堆叠在一起。

These cracks are likely only micrometers long.

这些裂缝可能只有几微长。

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

PM2.5测量意思是颗粒物直径小于或等于2.5微。

A normal bacteria measures one to five micrometers long.

正细菌有1到5微长。

Microplastics can be 5 millimeters long at most or as small as one micrometer.

微塑料最长可达5毫，或小至1微。

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微下降到664微，这是一个很小变化，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一百微到一百公里，能量较低，无法激起感光细胞作用，所以为不可见光。

In the lab, adult teeth soaked in white wine for a day suffered a loss of both calcium and a mineral called phosphorus to depths of up to 60 micrometers in the enamel surface, which the researchers say is significant.

实验室中，浸泡在白葡萄酒中恒牙（成年牙）60微表层牙釉质中出现了钙元素和矿物元素磷流失。研究人员称这种腐蚀程度算是严重了。

The city's daily concentration of fine particles less than 2.5 micrometres in diameter (PM2.5) — which can enter the bloodstream, leading to poor health — remained above 200 micrograms per cubic metre between 3 November and 9 November.

11 月 3 日至 11 月 9 日期间，该市直径小于 2.5 微细颗粒物（PM2.5，可进入血液导致健康不良）日浓度一直保持在每立方 200 微克以上。

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.

小于几微塑料可被称为纳微粒，研究发现这些微小颗粒可穿过类似细胞膜生物屏障。

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，喷嘴直径一般不会超过 400 微，可以挤出连续不断线丝，厚度和人指甲差不多。

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，农民们换了门，用一种被称为“盐水虾”甲壳类动物喂食，最小盐水虾长度有400微。

Rhizobia is a nitrogen-fixing bacteria up to 3 micrometers long and without it, that sort of agricultural production is impossible.

根瘤菌是一种长达3微固氮菌，没有它，不可能实现这种农业生产规模。

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.

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

You know with rocket science, if you're off by one centimeter, by one micrometer, you can cause catastrophic failures to take place.

你知道，对于火箭科学来说，如果相差一厘，一微，就可能导致灾难性故障发生。