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迫击炮在发射时会产生巨响、火光和烟雾,容易暴露目标。比利时研发出一种超小迫击炮,是隐形迫击炮中的佼佼者。
Mortar firing loudly, fire and smoke, easy to expose the target. Belgium developed a super-small mortar, stealth mortar is the leader.