blueshift
美 
英 
- un.蓝移
 - 网络蓝位移;蓝色沸点;蓝色行动
 
复数:blueshifts  
n.  | 1. a displacement in the wavelengths of spectral lines towards the blue end of the visible spectrum, indicating that the radiation source and observer are approaching each other.  | 
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