Secondary circle
| (Geom. & Astron.) | a great circle that passes through the poles of another great circle and is therefore perpendicular to its plane. |
See also: Secondary
| 单词 | secondary circle | ||
| 释义 | Secondary circle
See also: Secondary secondary circlesecondary circle[′sek·ən‚der·ē ′sər·kəl] |
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