中文翻译与英英解释

【天文学】X射线脉冲星。

x-ray:    n. X(射)线，伦琴射线；X光；X光照片。 adj. ...

pulsar:    n. 【天文学】脉冲星。

X-ray pulsars or accretion-powered pulsars are a class of astronomical objects that are X-ray sources displaying strict periodic variations in X-ray intensity. The X-ray periods range from as little as a fraction of a second to as much as several minutes.