全部

1·A distant, pulsating star is often interpreted as a binary star.

一颗遥远的脉动星常被解释为双子星。

2·They discovered almost 800 Cepheid variable stars, a special class of pulsating star used for accurate distance measurement.

他们发现了差不多800个造父变星，一种用于准确测量距离的特殊变星。