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电子科学研究的是电子运动的原理和利用电子运动原理制成的器件及其组成的线路和系统。阅读本书你会感受电子的魅力,发现电子科学就在身边。电磁炉烧水做饭实现了"无火之炊";将手机电池在开机状态下拔掉,就会出现"不在服务区"的应答效果;战争中电子对抗的宗旨是千方百计地使敌方的雷达失灵,通讯中断,导航失误,飞机迷航,导弹失控偏离轨道。这些都与电子学息息相关。