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单词 equatorial system
释义 equatorial system
[´e·kwǝ`tȯr·ē·ǝl `sis·tǝm]
ASTRONOMY
A set of celestial coordinates based on the celestial equator as the primary great circle; usually declination and hour angle or sidereal hour angle. Also known as celestial equator system of coordinates; equinoctial system of coordinates.
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