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penetration aid
el. 突防手段; 突破辅助装置
mil., air.def. 突防辅助手段
space 突防装置
penetration aids [,penɪˈtreɪʃ(ə)n ‘eɪdz]
busin. 突防装置
interntl.trade. 穿透用品
space 突防设备
 English thesaurus
penetration aid
abbr., mil. penaid
Penetration Aids
: 7 phrases in 2 subjects
Air defense1
Space6