Nanometer
Weights and measures units, a billionth of a meter, it was also known as "nm", abbreviated as nm.
In science and technology in Chinese, the one-thousandth (milli) for "cents", parts per million (micro) known as the "micro", "ns" 2 multiplied by exactly one billionth, it is also The length of the nano, but the more commonly used domestic transliteration of the "nano" is used.
The following is based on "m" (meters) as the center of several common unit:
1 meter: 1 meter (m)
1 decameter (10 m): 10 m
1 hectometer (100 m): 100 meters
1 kilometer (1000 m): 1 Gong Li
1 decimeter (1 / 10 m): 10 cm
1 centimeter (1 / 100 m): 1 cm
1 millimeter (1 / 1, 000 m): 1 mm (mm)
1 micrometer (1 / 1, 000,000 m): 1 micron
1 nanometer (1 / 1, 000,000,000 m): 1 nm

Nanoscale
Nano-scale science and technology is the establishment of material and physical structure of the atom and the atoms of science, by the famous physicist Richard Feynman first proposed in 1959, which is far more than can be refined motors, sensors and actuators embedded silicon on the micro-electromechanical systems (MEMS) technology by IBM in the 1970s created by the atomic force microscopy (AFM, atomic force microscope) is a major breakthrough in nano technology, AFM probes can be used on the to manipulate atoms on a surface, in theory, atoms can be used to make sensors, devices, and actuators, etc., and then was made into nano-machines (nano-machines), the use of this technology are numerous and the area wide, from the human in vivo micro-surgery to the molecular computing (molecular computing), environmental engineering, and even manufacturing.
Even the most precise use of existing technology-based nano-machines (nano-machine) is still time-consuming, today is still far away from the goal to achieve, so scientists are actively studying the development or manufacturing can be self-replicating nano-robots or other machines mini-robots, but this ideal realization of the former there are still many technical problems still to be resolved.

Nanosecond Time
Time units, a billionth of second, abbreviated to do NS.

NAP Network Access Point
ISP offers an Internet connection (INTERNET) backbone network (BACKBONE) facilities.