Snow reflects 80 percent of sunlight - three times more than water and five times more than beach sand .
雪会反射80%的太阳光,相当于水反射能力的三倍,海滩砂的五倍。
This smoothing changes the way the ocean reflects sunlight ; in a sense , it makes the water a better mirror .
这种平滑改变了海面反射日光的方式;在某种意义上说,它让水面更接近于一面镜子。
Arctic ice is considered vital for the planet as it reflects heat from the sun back into space , helping keep down the planet 's temperatures .
北冰洋的冰层对我们地球至关重要,因为冰层可以将太阳的热量反射回宇宙,有助于降低地球的温度。
Brightness is determined by how much light a fabric reflects and a machine could measure this objectively .
亮度是由布料反射光的多少决定的,可以用机器进行客观衡量。
The sun 's energy reflects off the bright white snow and escapes back out to space .
皑皑白雪将太阳的能量反射,并返回太空。
Sunburn is still possible in the winter because the snow reflects the sun 's rays .
冬天里仍然可能会有晒伤,因为雪会反射太阳辐射。
It has to do with the way light reflects off our enamel , the outermost layer of teeth .
这一点与光反射我们牙齿最外层珐琅质的方式有关系。
Individual phytoplankton are tiny , but when they bloom by the billions , the high concentrations of chlorophyll and other light-catching pigments change the way the surface reflects light .
Its shiny exterior renders it an alien creature , and yet at the same time , reflects the surrounding wood , brick , and greenery .
它光泽的外观让它看起来像外星生物,可是同时它又反射出周围树木、砖瓦和草坪的光影。
Just as you might get sunburned while glacier traveling on a spring day , the polar ice cap and surrounding snow reflects massive amounts of solar energy in a process that has a net cooling effect on the globe .