电子技术在军事领域的运用,使军事斗争迎来了崭新的高科技时代,但也带来了不少事与愿违的麻烦,电子墙就是一例。电子墙不是墙。它不是砖块石头垒砌的城墙,连电网、铁丝网什么的屏障也不见有。它是一条肉眼几乎看不见的、无影无踪的、奇特的高科技防线。电子墙全名叫“哈德良电子墙”。它位于美国阿拉斯加、加拿大北部、格兰陵北纬70°附近,横贯于北美地区,全长5 800千 The use of electronic technology in the field of military affairs has brought a new high-tech era to the military struggle, but it has also brought a lot of inconveniences. The electronic wall is an example. Electronic wall is not a wall. It is not a stone wall masonry walls, even the power grid, barbed wire barrier nothing see. It is a virtually invisible eye, without a trace, the strange high-tech defense. Electronic wall full name “Hadrian electronic wall ”. It is located in Alaska, the United States, northern Canada, the Grand Mile near latitude 70 °, traversing North America, a total length of 5 800 thousand