| |||
ellipse | |||
elliptic orbit; elliptical orbit | |||
ellipsoidal orbit; elliptic trajectory; elliptical trajectory | |||
oval orbit |
椭圆轨道 : 44 phrases in 9 subjects |
Air defense | 2 |
Aviation | 4 |
Chemistry | 1 |
Earth sciences | 1 |
Electronics | 1 |
General | 2 |
Space | 22 |
Technology | 9 |
United Nations | 2 |