星数，读音xīng shù，汉语词语，意思是指星的数目。出自《公羊传·桓公八年》。
若观测星数增多，则可以大大提高系统性能，表明该组合导航系统设计方案是成功可行的。
If there are more navigational stars, the system performance will be improved more. So the design of the integrated navigation system is successful.
如果图片拍摄的非常相似，用于对齐的星数可以设置的更少些，比如10或30也许就足够了。
As the inidividual images are probably very similar, the number of stars required to align the images is usually small, and a number of 10 or 30 is probably sufficient.
直到现在，只是零星地发现这类基因，因此这些基因的数量仍旧是未知数。
Until now, though, such genes have been discovered piecemeal, so no one knows how many there are.
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