| 单词 | tropospheric superrefraction | 
| 释义 | tropospheric superrefraction [¦trōp·ǝ¦sfir·ik ¦sü·pǝr·ri`frak·shǝn]  GEOPHYSICS Phenomenon occurring in the troposphere whereby radio waves are bent sufficiently to be returned to the earth.  | 
	
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