Double-star systems are very common in the Milky Way - in fact, solitary stars like the sun are in the minority.
在银河系中，双星系统是很常见的- - -实际上类似太阳这样独居的恒星是少数的。
2
According to the characteristic of Beidou double-star positing system(double-star positoin), this paper puts forward the optimal predication model of double-star position/SINS integrated system.
根据北斗双星定位系统（简称双星定位）的特点，提出了北斗双星与SINS组合的最优预测模型。
3
Fish's interpretation of the map was created from the viewpoint of a doublestar system called Zeta Reticuli.