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纳米是一种计量单位，１纳米是１毫米的百万分之一。纳米技术指把材料做成纳米级的颗粒，再用这种超细粉末“组装”成供人们使用的材料。纳米技术、信息技术和生物技术将成为２１世纪社会发展的三大支柱。 普通通信光缆中的光导纤维用非纳米级材料拉制而成，只适用于常规环境中
Nanometer is a unit of measure, 1 nanometer is 1 millionth of a millimeter. Nanotechnology refers to the process of making materials into nanoscale particles, which are then “assembled” into materials for people to use. Nanotechnology, information technology and biotechnology will become the three pillars of social development in the 21st century. The optical fiber in ordinary communication optical fiber is made of non-nano material and is only suitable for normal environment