stellar spectrum meaning in English

恒星光谱

Stellar spectra vary considerably .
恒星的光谱有相当大差异。
If the stellar spectrum is known, the albedo of the dust can be obtained .
如果恒星的光谱已知，就可得出尘埃的反照率。
In chap. 19 we saw that red shifts in stellar spectra result from motions away from the earth .
在第十九章我们已了解到，恒星光谱中的红移是恒星背离地球的运动造成的。
3 . according to the algorithm of attribute reduction , auto - classification system about stellar spectrum data is designed and implemented through using visual foxpro 6 . 0 , which automatically extract rules from stellar spectrum
3 .依据上述属性约简算法，采用visualfoxpro6 . 0数据库管理系统，设计与实现了恒星光谱数据自动分类系统，实现了恒星光谱分类规则的自动提取。