英语词汇“radius vector”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

单词	radius vector
释义	radius vector n. 1. Mathematics a. A line segment that joins the origin and a variable point in a system of polar or spherical coordinates. b. The length of such a line segment. 2. Astronomy A straight line connecting the center of mass of a satellite, such as a planet, moon, or comet, to the center of mass of the body it orbits, such as the sun or Earth. Also called position vector.
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