| trace |
A line or "wire" of conductive material ?such as copper, silver, or gold ?on the surface of or sandwiched inside a PCB, printed circuit board. These traces are often called individually a run. Traces carry an electronic signal or other forms of electron flow from one point to another. Traces that are on the surface of a board are covered with a non-conductive coating, except at contact or solder points, to keep unintentional contact from being made with other conductive surfaces.
출처: www.xilinx.com/publications/glossary.htm
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| tracer |
A distinguishable substance, usually radioactive, administered to determine the distribution and/or metabolism of materials in the body. In 1923, George Hevesy was the first investigator to use an isotope (radioactive thorium) in metabolic studies, exploring lead transport in the bean plant. Metabolic studies proliferated after World War II, when with the development of the cyclotron, radioisotopes of various atoms became more widely available. ...
출처: www.eh.doe.gov/ohre/roadmap/achre/glossary.html
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| trace |
the basic outline of an earthwork
출처: www.cr.nps.gov/hps/gis/reports/gloss/glossary.htm
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| trace |
A style of chain usually manufactured from small lightweight links. Most often used to suspend a pendant from eg, cross or St. Christopher etc., available in varying sizes.
출처: www.cooksongold.com/help/terminology.html
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| trace e.’s |
chemical elements that are distributed throughout the tissues in very small amounts and are essential in nutrition, such as cobalt, copper, magnesium, manganese, selenium, and zinc; for optimal bioavailability they must be in a balanced mixture, and they may be harmful or toxic in excess.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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