| 单词 | superfortress | 
| 释义 | > as lemmassuperfortress   superfortress  n.  Brit.  , U.S.   		 (a) a very large and heavily defended fortress;		 (b) a bomber aeroplane larger and more technically advanced than the Boeing B-17 ‘flying fortress’ (cf. flying fortress n. at flying n. Additions); spec. (an informal name for) the Boeing B-29 long-range heavy bomber aeroplane developed in the early 1940s.ΚΠ 1916    Manch. Guardian 24 Nov. 5/3  				They were super-fortresses defended by large garrisons as heavily armed and munitioned as the men wished. 1938    Joplin 		(Missouri)	 Globe 22 Apr.  a1/5  				The army's famous ‘flying fortress’ is available for export. The army's faster, more lethal super-fortress is not. 1982    Pop. Mech. Dec. 127/1  				Though subsequently replaced by the even more awesome B-29 Superfortress, the B-17 was a marvelous flying machine. 2010    D. Brown Executive Intent ii. 83  				Although Wenchang was the main target of this mission, the Grebe drone also snapped a few pictures of the rest of the island superfortress. 2011    G. G. Loving Bully Able Leader xi. 122  				Known as the Superfortress, the B-29 was a huge airplane with a wingspan of 141 feet and a crew of eleven. < as lemmas  | 
	
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