| 椭圆 | tuǒ yuán | oval / ellipse / elliptic | ![]() |
| 椭圆函数 | tuǒ yuán hán shù | (math.) elliptic function | ![]() |
| 椭圆积分 | tuǒ yuán jī fēn | (math.) elliptic integral | ![]() |
| 椭圆曲线 | tuǒ yuán qū xiàn | (math.) elliptic curve | ![]() |
| 近日点 | jìn rì diǎn | perihelion, the nearest point of a planet in elliptic orbit to the sun / lower apsis | ![]() |
| 远日点 | yuǎn rì diǎn | aphelion, the furthest point of a planet in elliptic orbit to the sun / opposite: perihelion 近日點|近日点[jin4 ri4 dian3] / higher apsis | ![]() |
