ultra light velocity的用法和樣例：
例句
- Recently, the study of subluminal and superluminal light propagation has attracted a great deal of interest.
光速減慢和超光速的光脈衝傳播研究成為量子光學中的熱門課題。 - Especially for flat-spectrum compact radio sources,the milli-arcsecond components with apparent superluminal velocity are detected with high probability.
尤其是對平譜緻密射電源中毫角秒尺度的子源，能以相當高的概率觀測到它的視超光速現象。
