送交者: LB 于 2006-4-05, 16:46:33:
回答: 炎阳，再来一个！中国能在世界军事占一席之地的五种领先军事装备 由 吴礼 于 2006-4-05, 14:29:07:
Because of divergence, a laser beam spot will become very big after traveling a long distance, and the energy density will become too weak to hurt anything.