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Price of Water Front filter It should be around one thousand Yuan Jingdong is not there? Ordinary 5 004000
What are the properties of nano-materials? 4 macro quantum nano-material refers to the size of less than 100nm (0.1-Ultra-fine particles of 100nm) constitute a general term for zero-dimensional, one-dimensional, two-dimensional, and three-dimensional materials with small-size effects.Nano is the translation of English namometer,Is a unit of measure in physics,1 nano is one billion of 1 m;Equivalent to the length of 45 atoms arranged.Generally speaking,Equivalent to the thickness of one in ten hair.Like mm, Micron,Nano is a scale concept,There is no physical connotation.When the material reaches the nano scale,It's about 1-This range of 100 nm,The performance of the substance will change,Special performance appears.This one is different from the original atoms and molecules,Material that is also different from the special properties of macro substances,That is, nano-materials.If only the scale reaches Nano,And materials without special properties,Nor can it be called nano-materials.Past,People only pay att
