1, nm (abbreviation of nanometer) 1 nm = 1 nm (that is, one billionth of a meter), which is about the length of 10 atoms. Suppose that a hair has a diameter of 0.05 mm and is divided into 50,000 hairs on average in the radial direction, and the thickness of each hair is about 1nm.
2. The meaning of 2.nm (metric yarn count) metric yarn count. The unit of warp and weft thickness of textiles; The unit is s, and the number of English yarns is Ne.
3.nm (abbreviation of nautical mile) nautical mile is the international unit of measurement. 1 nautical mile =1.852km (km) (China standard). Standard symbol n miles. The symbol used in People's Republic of China (PRC)'s legal unit of measurement is n miles. It is equal to the arc length corresponding to 1 minute latitude on the earth's elliptical meridian (once equal to 60 minutes, a circle is 360 degrees).
4.nm(linux command) The nm command is mainly used to list symbols in some files. In linux, nm is used to list the symbols of the target file.
5.nm (abbreviation of wear resistance) wear-resistant materials are a large class of new materials with special electrical, magnetic, optical, acoustic, thermal, mechanical, chemical and biological functions. They are important basic materials in high-tech fields such as information technology, biotechnology, energy technology and national defense construction, and also play an important role in transforming some traditional industries, such as agriculture, chemical industry and building materials.