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问题: falling slowly in后怎么理解?

Obviously, the “daylight”produced by any star depends on its temperature; today(and for ages to come)our Sun is at about 10,000 degrees Fahrenheit, and this means that most of the Sun's light is concentrated in the yellow band of the spetrum, falling slowly in intensity toward both the longer and shorter light waves.
最后一句falling slowly in intensity toward both the longer and shorter light waves.怎么翻译?

解答:

很显然,任何恒星所产生的“日光”都与恒星本身的温度有关;今天(以及未来很长时间)我们的太阳温度为1万华氏度,这意味着太阳光多集中在光谱的黄光区域,光线强度向更长和更短的光波区域缓缓延伸。