4.Therefore we turn to solar spectrum analysis, it is well known that solar spectrum is a rich information pool including broad continuum and thousands of emission and absorption Frauhofer lines.

• 于是我们想到了利用太阳光谱分析，太阳光谱是一个丰富的信息宝藏，包含了分布在广阔波段的连续谱以及数以万计的夫琅和费吸收线和发射线。