In 2001, the Pentagon declassified one element of this research: the Active Denial System, a weapon that uses electromagnetic radiation to heat skin and create an intense burning sensation.是什么意思_In 2001, the Pentagon declassified one element of this research: the Active Denial System, a weapon that uses electromagnetic radiation to heat skin and create an intense burning sensation.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句