“纳米技术”就是通过物理或化学方法将物质粉碎成“纳米级（即 10－ 9m）的微粒”。这种微粒比头发丝的十万分之一还要细，要在 20万倍以上的电子显微镜下才能看得清楚。自 90年代初开始兴起的纳米技术，可以带来信息、能源、交通、医药、食品、纺织、环保等诸多领域的新变革 “Nanotechnology” is the physical or chemical method to smash matter into “nano-scale (ie 10-9m) particles.” This kind of particles is thinner than the one hundred thousandth of the hair, and can be seen clearly under an electron microscope of more than 200,000 times. Nanotechnology, which has flourished since the early 1990s, can bring about new changes in many fields such as information, energy, transportation, medicine, food, textiles and environmental protection