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safety and arming device
avia. 引信保险和解除保险装置
el. 保险和解除保险装置
space 保险与解除保险装置; 安全与保险装置; 引信保险和爆炸装置
tech. 保险执行机构
safety and arming device: 9 phrases in 2 subjects
Electronics1
Space8