In the case of France, there is the work of a brilliant military engineer called Vauban, v-a-u-b-a-n.
至于法国,这里有一位杰出的军事工程师的作品,工程师名叫 Vauban,v-a-u-b-a-n。
2
After deriving their effective temperatures and luminosities from their (B-V), (U-B) colors and parallaxes we find their positions in the HR diagram to be mostly confined to the main sequence.