短語詞組短語Elliptic satellite orbit model 衛(wèi)星橢圓軌道模型elliptic periodic orbit 橢圓周期軌elliptic reentrance orbit 橢圓再入軌道Sommerfeld elliptic orbit 索末菲橢圓軌道;翻譯elliptic orbit life 橢圓軌道壽命elliptic orbit capture 橢圓軌道捕獲elliptic orbit constellation 橢圓軌道星座an elliptic orbit 橢圓軌道highly elliptic orbit 大橢圓軌道 返回 elliptic orbit