“octant”的概念、定义、翻译、参考文献-科学参考

单词	octant
释义	octant [`äk·tǝnt] ^MATHEMATICS 1. One of the eight regions into which three- dimensional euclidean space is divided by the coordinate planes of a cartesian coordinate system. 2. A unit of plane angle equal to 45° or π/8 radians. ^NAVIGATION A double-reflecting instrument used primarily for measuring altitudes of celestial bodies from a moving ship or airplane; has a range of 90°, and while a sextant has the capability up to 120°, the common practice applies the name sextant to both types of instruments.
随便看	reduction of tidal current reduction of tides reduction potential reduction ratio reduction roll reduction rule reduction sequence reduction sphere reduction to sea level reduction to the meridian reduction to the sun reductive grammar redundancy redundancy bit redundancy check redundant bombing redundant character redundant code redundant digit redundant equation redundant system Reduviidae Reduvioidea reduzate red water

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