blue flash

名词 n.
中文释义

英文释义

名词 n.
  1. A very rare phenomenon observed in the morning or evening when the sun is crossing or immediately below the horizon, in which a momentary flash of blue light appears above the upper rim of the solar disk, caused by refraction of light in the atmosphere.
  2. A phenomenon sometimes observed when a criticality accident occurs in nuclear materials, inducing a discharge of radiation into the environment.

词形变化

blue flashes plural
0 次浏览 数据来源: Wiktionary