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2010年12月10日,美国海军成功试射超电磁炮(electromagnetic railgun),其炮弹速度达5倍音速,射程远达110海里(204公里)。这项未来武器的推力来自电流,让非爆裂
On December 10, 2010, the U.S. Navy successfully tested the electromagnetic railgun with a speed of 5 times the speed of sound with a range of up to 110 nautical miles (204 km). The thrust of this future weapon comes from the current, let the non-burst