- barycentric system
- 重心系
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
barycentric system
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Barycentric Dynamical Time — (TDB) was a time standard used to take account of time dilation when calculating orbits of planets, asteroids, comets and interplanetary spacecraft in the Solar system. It was based on a Dynamical time scale but was not well defined and not… … Wikipedia
Barycentric — can refer to:In astronomy, * Barycentric coordinates (astronomy) are coordinates defined by the common center of mass of two or more bodies * Barycentric Dynamical Time was a time standard in the Solar system * Barycentric Coordinate Time is a… … Wikipedia
Barycentric Coordinate Time — (TCB) is a coordinate time standard intended to be used as the independent variable of time for all calculations pertaining to orbits of planets, asteroids, comets, and interplanetary spacecraft in the Solar system. It is equivalent to the proper … Wikipedia
Barycentric-sum problem — Combinatorial number theory deals with number theoretic problems which involve combinatorial ideas in their formulations or solutions. Paul Erdős is the main founder of this branch of number theory. Typical topics include covering system, zero… … Wikipedia
Barycentric coordinates (astronomy) — In astronomy, barycentric coordinates are non rotating coordinates with origin at the center of mass of two or more bodies.Within classical mechanics, this definition simplifies calculations and introduces no known problems. In the General Theory … Wikipedia
System time — Unix date command In computer science and computer programming, system time represents a computer system s notion of the passing of time. In this sense, time also includes the passing of days on the calendar. System time is measured by a system… … Wikipedia
barycentric coordinate system — /bar euh sen trik/, Math. a coordinate system for an n dimensional Euclidean space in which each point is represented by n constants whose sum is 1 and whose product with a given set of linearly independent points equals the point. [ < Gk barý(s) … Universalium
barycentric coordinate system — /bar euh sen trik/, Math. a coordinate system for an n dimensional Euclidean space in which each point is represented by n constants whose sum is 1 and whose product with a given set of linearly independent points equals the point. [ < Gk… … Useful english dictionary
barycentric energy — noun The energy of a system with respect to its centre of gravity … Wiktionary
Coordinate system — For geographical coordinates on Wikipedia, see Wikipedia:WikiProject Geographical coordinates. In geometry, a coordinate system is a system which uses one or more numbers, or coordinates, to uniquely determine the position of a point or other… … Wikipedia
Baryzentrisches System — Dieser Artikel beschreibt baryzentrische Koordinaten in der Geometrie. In der Astronomie bezeichnet man als Baryzentrische Koordinaten das Schwerpunktsystem eines Systems von Himmelskörpern, vgl. auch Astronomische Koordinatensysteme… … Deutsch Wikipedia
