A few inorganic structures of nanometer scale—minute crystals, for instance—have already been commercialized, notably as contrast agents.
A few inorganic structures of nanometer scale—minute crystals, for instance—have already been commercialized, notably as contrast agents.
少数奈米尺度的无机构造，像是微晶体，已经商品化了；出名的例子是对比剂。