| 单词 | Schwarzschild radius | 
| 释义 | Word Frequency Schwarzschild radius(ˈʃwɔːtsˌʃɪld,  German ˈʃvartsʃɪlt) noun  astronomy the radius of a sphere (Schwarzschild sphere) surrounding a non-rotating uncharged black hole, from within which no information can escape because of gravitational forces Word origin C20: named after Karl Schwarzschild (1873–1916), US astrophysicist | 
	
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