?信管
... 新型特征船舶 novel type of craft 信管 detonating tube 信号 signal ...
塑料导爆管
双导爆管
非电导爆管起爆法
Still, a number of things could go wrong from a fuse malfunctioning, a problem with the barrel's assembly to a round prematurely detonating inside the tube, he said.
NPR: Mortar Explosion In Nev. Kills 7 NC Unit Marines
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