Directed-energy weapons - military-grade laser cannons - have been a military dream for decades, along with guns that fire their munitions with bursts of electromagnetic energy.

定向能源武器—军用级激光炮，以及发射军火时同时爆发电磁能的枪支，几十年来一直是军事梦想。

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Clean Beta will review the mission critical role of ten green and clean energy technologies in next generation naval warfare, including unmanned underwater submarines, hybrid propulsion systems, high-powered microwaves and electromagnetic rail guns.

FORBES: Ten Clean Energy Technologies The U.S. Military Needs To Win The Next Naval War