cepheid ['kɪfaɪd]

例句:

• It is the receding distances of Cepheid variables and Supernovas from our galaxy which has established expansion of Universe.
  来自SA
• Cepheid variable stars are stars whose brightness changes at regular periods.
  造父变星是一种光线按规律周期发生变化的恒星.
  
• His first great discovery was made when he recognized a Cepheid variable star.
  他的首次重大发现产生于他认识了一颗造父变星的时候.
  
• May be at relatively shorter distances, at which Cepheid stars are located, no red shift is detectable.
  来自SA