radiant point

常見例句

Declare yourself to be a radiant point of light that will make a difference in the world.
相信你自己就是一粟燦爛的光點(diǎn)，讓這個(gè)世界變得異彩紛呈。
blog.sina.com.cn
Of course, the trails point back to a radiant point in the constellation Perseus, giving the meteor shower its name.
當(dāng)然，沿著這條流星光跡反向延伸出去，就可以找到位于英仙座中的輻射點(diǎn)——這個(gè)流星雨正是因此而得名的。
bbs.astron.ac.cn
Meteors in annual showers stem from comets, and the radiant point is the point in the sky where we cross the comet's orbit. It's kind of like the point in the distance where train tracks converge.
每年的流星雨主要來自彗星，而輻射點(diǎn)就是與彗星軌道相交的那個(gè)點(diǎn)，就好像列車軌道在遠(yuǎn)處聚合的那點(diǎn)一樣。

To illustrate his point, Peroutka sent along the charts below which show piracy of Hexage app Radiant, which has been available for Android since August.
FORBES: Android's Serious Piracy Problem Costs Developers