| 释义 |
Shift,Doppler | 《英文msh词典》Shift,Doppler | | [入口词] Shift,Doppler | | [主题词] Doppler Effect | | [英文释义] Changes in the observed frequency of waves (as sound,light,or radio waves) due to the relative motion of source and observer. The effect was named for the 19th century Austrian physicist Johann Christian Doppler. |
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