| 单词 | penetration aid | 
| 释义 | > as lemmaspenetration aid   penetration aid  n. an object released from a missile as a decoy to draw off any attacking missiles. ΘΚΠ society > armed hostility > military equipment > weapon > missile > guided or ballistic missile > 			[noun]		 > decoy object penetration aid1960 1960    Operations Res. 8 683  				Such an orientation would point out that decisions,..cannot with impunity be made one penetration aid at a time—without affecting other decisions as to the desirability of other aids. 1984    C. Wain in  Listener 23 Feb. 3/2  				Warhead development and the design of penetration aids (which confuse enemy defences) for ballistic missiles is [sic] an expensive process. < as lemmas  | 
	
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