短語詞組短語orbit t perturbation 軌道攝動(dòng)satellite orbit perturbation 衛(wèi)星軌道攝動(dòng)orbit perturbation of spacecraft 航天器軌道攝動(dòng)orbit perturbation of the satellite 衛(wèi)星軌道攝動(dòng)perturbation orbit 軌道微擾 返回 orbit perturbation