One example of a boundary condition is solar radiation.

件的一个例子就是日射。

Only about 40% of solar radiation is visible to the eye.

射中只有大约40%的光是肉眼可见的。

Solar radiation can be particularly dangerous to astronauts working outside in space.

射对在空外工作的宇航员来说尤其危险。

Way up in northern Canada which receives an equivalent solar radiation as Mars.

它接收射是和在火星上的差不多。

This part of the planet gets more average solar radiation throughout the year.

这里的植物年均日照量比其他地区更高。

There is intense gravitational pull from the sun, as well as extreme solar radiation.

对水星的引力作用很大，此外射也很高。

The ice is bathed in ultra-violet light, simulating solar radiation, which breaks up the molecules.

冰沐浴在紫外线中，模拟射分解分子。

Dark tightly curled hair is most effective at keeping solar radiation off of skin.

深色且极为卷曲的头发最能有效地防止射照射皮肤。

So the white ones reflect incoming solar radiation and the red ones and the dark ones absorb it.

白色的会反射射，红色的和深色的则会吸收射。

Without trees to provide shade, buildings absorbed up to nine times more solar radiation during deadly summer heat waves.

没有树木遮荫，建筑物在致命的夏季热浪中吸收的射比平时多了近 9 倍。

The threat from solar radiation is just one more reason for scientists to keep a close watch on our Sun.

射的威胁只是另一个让科学家密切关注的理由。

As well as drinking it, NASA's exploring using water as protection from solar radiation, and as a possible fuel source.

在探测饮用水的同时，美国宇航局正在探索如何利用水来防止射，以及将其作为可能的燃料来源。

For his research, he collects data that include wind speed, solar radiation, and the reflective properties of the ice crust.

他的研究中，他收集了包括风速、射以及冰壳的反射特性在内的数据。

Space colonists also require protection from  solar radiation.

空殖民者还需要保护免受射。

Of course, we'd probably miss the solar radiation.

当然，我们可能会错过射。

The ozone layer is mainly high in the atmosphere and prevents dangerous solar radiation from reaching the surface of the Earth.

臭氧层主要位于大气高层，防止危险的射到达地球表面。

What this does is it blocks direct solar radiation from hitting you.

其作用是阻止射直接照射到您。

That's, of course, if you could make it through all the solar radiation.

当然， 前提是你能熬过所有的射。

Its atmosphere is incredibly thin, exposing the surface to hazardous cosmic rays and solar radiation.

它的大气层非常稀薄，使表面暴露在有害的宇宙射线和射中。

For these reasons and more solar radiation management is risky.

由于这些原因，更多的射管理是有风险的。