Although very hot, prominences typically appear dark when viewed against the Sun, since they are slightly cooler than the surface.
虽然很热,日珥典型表现是在太阳的衬托下显得较暗,因为它们比太阳表面稍冷一些。
The telescopes sift through the background cosmic radiation to find spots where it has been slightly perturbed as it passes through extremely hot gas, a hallmark characteristic of galaxy clusters.
南极天文台三大观测宇宙的天文台之一,旨在检测由宇宙大爆炸而产生的大量存在于微光辐射中的扭曲现象,利用天文望远镜对宇宙射线背景进行筛选,再利用星系群的特点确定一个点,即当宇宙射线穿过极热气体时会产生轻微混乱,混乱的那一刻就是所要找的那个点。
On hot days, the office actually emits slightly more CO2 to cool each worker.
在炎热的天气里,办公室每天的碳排放比冷天稍多一点。
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