释义
n. 发射,射出,发行
例句
1. Emission and propagation of energy in the form of rays or waves.
发射以光线或波的形式发出和传播能量
2. In cathode ray tube display, the continuation of light emission from phosphor after excitation by the electron beam.
在阴极射线管显示器中，用电子束激励后荧光物质光发射的持续现象。