The South Pole Telescope, which began scientific observations in 2007, surveys the sky for cosmic microwave background radiation, the "afterglow" of the Big Bang.
南极望远镜2007年开始工作。它的作用是观察宇宙微波背景辐射，这是宇宙大爆炸的“余辉”。
Launched in 2001, WMAP measures differences in the Cosmic Microwave Background (CMB) radiation, the residual heat of the Big Bang that fills the Universe and appears over the whole of the sky.
WMAP于2001年被送入太空，用来测量宇宙微波背景(CMB，即充满整个天空的大爆炸残留热量)辐射的差异。
They were also concerned about “sky shine”: radiation emanating from the roof that’s reflected downward by atmospheric particles.
此外，他们还担心“天空回散照射（skyshine）”的问题：房顶散发的辐射会被大气中的颗粒向下反射。
What they found was that radiation was coming from everywhere in the sky (that they could measure) with the same exact energy!
他们发现，辐射从天空各个方向(他们可以测定)射来，具有相同的能量！
Sun elevation: the higher the sun in the sky, the higher the UV radiation level.
太阳高度：太阳在空中越高，紫外线辐射水平就越高。
The louvers may be adjusted so that they reject summer radiation, admit overcast sky luminance or act as light shelves, depending on the nature of day and the requirements of each storey.
百叶窗可以调节以阻挡夏天的辐射、接受多云天气的自然光或充当灯架，这将取决于天气情况和每层的具体要求。
With the help of special radio telescope, the intensity of radiation can be measured in different parts of the sky.
借助于专门的射电望远镜，就可以测量天空中任何地方辐射的强度。
In the first part of this paper some typical methods for measuring sky long wave radiation and sky effective temperature are briefly reviewed.
本文的第一部分对天空长波辐射和天空有效温度的测定方法作了简要评述。
It is integrated with the functional modules for hull radiation, stack plume radiation, sea-sky background radiation, atmospheric transmission and infrared seeker.
该系统集成了船体辐射场、排气烟羽辐射场、海天背景辐射、大气传输计算和红外导引头等功能模块。
The principle, the system concept and the choice of lamp, spectrum, filter of the night sky radiation simulator for the performance evaluation of lowlevellight night vision systems is introduced.
介绍用于微光夜视仪性能评价的夜天光模拟器的原理和系统概念以及对光源、光谱、滤光片等的选择。
If your schedule is flexible, go outdoors in early morning or late afternoon when the sun is lower in the sky. UV radiation peaks at midday, when the sun is directly overhead.
如果你的日程安排灵活，可以尽量选择早晨或者傍晚，尽量避免中午太阳辐射最高峰时刻出行。
The 3-d cloud of the cloudy sky is created through the particle system, and its radiation is obtained by grey body approximation.
位于空中的三维云团则采用粒子系统生成，并用灰体近似的方法得到其红外辐射值。
According to the characteristics of agroforestry systems in hilly regions in the Sichuan Basin, a theoretic analysis is given to the distribution features of diffue sky radiation in these systems.
根据四川盆地浅丘区农林复合系统特点，从理论上分析了该系统内天空散射辐射令布特征。
According to the practical need of infrared surveillance system, the infrared radiation feature of missile and predigest model under the background of sea and sky was studied.
本文从舰载红外警戒系统的实际需要出发，针对海空背景下低空来袭反舰导弹目标，深入研究了导弹的红外辐射特征，并建立了其红外辐射的简化模型。
According to the practical need of infrared surveillance system, the infrared radiation feature of missile and predigest model under the background of sea and sky was studied.
本文从舰载红外警戒系统的实际需要出发，针对海空背景下低空来袭反舰导弹目标，深入研究了导弹的红外辐射特征，并建立了其红外辐射的简化模型。
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