| Change log entry 91601 | |
|---|---|
| Processed by: | richwarm (2025-08-29 11:32:43 UTC) |
| Comment: |
<< review queue entry 83658 - submitted by 'encn' >> 定/直线 it's used in 在圆锥曲线的统一定义中：平面内一点到定点与定直线的距离的比为常数e(e>0)的点的轨迹，叫圆锥曲线。而这条定直线就叫做准线（Directrix）。 |
| Diff: |
- 定直線 定直线 [ding4 zhi2 xian4] /directrix of a parabola/ |