英语词汇“octant”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

oc·tant

(ŏktənt)

1. One eighth of a circle.

a. A 45° arc.

b. The area enclosed by two radii at a 45° angle and the intersected arc.

3. An instrument based on the principle of the sextant but employing only a 45° angle, used as an aid in navigation.

4. Astronomy The position of a celestial body when it is separated from another by a 45° angle.

5. One of eight parts into which three-dimensional space is divided by three usually perpendicular coordinate planes.

[Latin octāns, octant-, from octō, eight; see oktō(u) in the Appendix of Indo-European roots.]

oc·tantal (ŏk-tăntəl) adj.

单词	octant
释义	oc·tant (ŏktənt) n. 1. One eighth of a circle. 2. a. A 45° arc. b. The area enclosed by two radii at a 45° angle and the intersected arc. 3. An instrument based on the principle of the sextant but employing only a 45° angle, used as an aid in navigation. 4. Astronomy The position of a celestial body when it is separated from another by a 45° angle. 5. One of eight parts into which three-dimensional space is divided by three usually perpendicular coordinate planes. [Latin octāns, octant-, from octō, eight; see oktō(u) in the Appendix of Indo-European roots.] oc·tantal (ŏk-tăntəl) adj.
随便看	geomagnetic pole geomagnetic reversal geomagnetic storm geomagnetism geomancer geomancy geomantic geometer geometer geometric geometrical geometrically geometrician geometric isomer geometricized geometric mean geometric pace geometric progression geometrics geometric series geometrid geometrize geometry geomorphic geomorphologic