| 释义 |
Doppler effectn.Physics（名词）【物理学】- An apparent change in the frequency of waves, as of sound or light, occurring when the source and observer are in motion relative to each other, with the frequency increasing when the source and observer approach each other and decreasing when they move apart.都普勒效应：光波或声波等波源和观察者相对运动时产生的频率明显变化，二者靠近时频率增强，二者分离时频率减弱
- After Christian Johann Doppler 源自 克里斯蒂安·约翰 Doppler
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