纳米技术是个近几天挺时兴的词，究竟它又有什么用处呢？Nanotechnology uses matter at the level of molecules and atoms. Researchers are finding different uses for particles with a length of one nanometer, or one-billionth of a meter. These include things like beauty products and dirt-resistant clothing. But one area where many experts believe nanotechnol…
发表于 2016-8-2 14:16:03