spiral beam的用法和樣例：
例句
- If the satellite has an elliptical orbit, the result is a spiral wave, a miniature version of the pinwheel pattern of our galaxy.
如果衛星的軌道是橢圓的，就會產生螺旋波，就像是銀河系紙風車形狀的縮影。 - Another possibility is that large-scale spiral waves in the disk, similar to the spiral arms observed in galaxies, hasten the inflow of matter.
另一個可能性是，類似星系旋臂的大尺度螺旋波，加劇了物質的向內流動。
