| 1. | An example is the emission of light from matter .
物质的发光即为一例。 |
| 2. | A lumen is a measure of the rate of emission of light energy .
流明是光能放射率的量度单位。 |
| 3. | Both ionization and excitation lead to electronic transitions that may be the emission of light .
电离和激发都将导致可能伴随有光发射的电子跃迁。 |
| 4. | Then they decay by the emission of light . we can get the information about the structure of the atoms by analysis of the spectrum
束箔实验中，离子束经过加速器的质谱分析，保证了它在同位素上是纯的。 |
| 5. | The emission of light that does not derive energy from the temperature of the emitting body , as in phosphorescence , fluorescence , and bioluminescence
发冷光：不是由于发光体的热量而来的光的发射，比如在磷光，荧光和生物性发光中。 |
| 6. | Unlike the procedure for recording the emission spectrum of fluorescent lights , the emission of light from the flame is not steady
与记录荧光发射光谱不同，火焰发出的光并不稳定，可能仅仅持续一个相当短的时间，而且光的强度也会发生变化。 |
| 7. | Hence , the spectrum is called a line spectrum ; it is also called an atomic emission spectrum , since it is produced by emission of light from excited atoms
因此，这个光谱也被称为线光谱，也被称为原子发射光谱，因为它是由被激活的原子发出的光产生的。 |
