luminous emission

• 光发射

luminous emission的用法和样例：

例句

1. The reason is a fundamental one associated with the mechanism of light emission.
   其基本原因涉及到光发射的机理。
2. The blue regions show the cool optical emission, detected by Hubble, from the dust and gas thrown off the star.
   蓝色部分表示寒冷的光发射，由哈勃探测到，来自摆脱恒星的尘埃和气体。