納米技術講緊嘅單位係納米 一納米即係十億分之一米 用比例表示嘅話 當你有好多個一納米厚嘅納米粒子 你將佢一個個咁排起 總共有 50,000 個 咁就有一條人類頭髮咁粗
Nanotechnology says that the unit is nanometers, and one nanometer is one billionth of a meter, and in terms of proportions, when you have a lot of nanoparticles that are one nanometer thick, and you line them up one by one, there are 50,000 in total, and that's the thickness of a human hair