ultra-rays

 
['ʌltrər'eɪz]     ['ʌltrər'eɪz]    
  • 宇宙线

ultra-rays的用法和样例:

例句

  1. Cosmic rays and Geigertubes have been combined in a new altimeter to tell the pilots what their altitudes are.
    宇宙线兴盖氏管已过连接成为一种新的高度计用来告诉飞行员他们的高度是多少。
今日热词
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