| 1. | They are trying to send rockets around the moon
他们试图发射火箭绕月而行。 |
| 2. | China ' s technological enthusiasm is matched by that of india , which hopes to circle the moon with its own satellite next year
印度对科技也有同样的热情，它也想在明年让自己的卫星绕月飞行。 |
| 3. | The trip around the moon would last between eight and 21 days , depending on whether the travelers make a stop at the international space station
绕月旅行将持续8到21天，主要取决于旅行者是否在国际空间站逗留。 |
| 4. | Energiya , the russian company that helps build and fly moscow ' s spaceships , will build the equipment necessary for the round - the - moon mission
协助制造并放飞多艘莫斯科太空飞船的俄罗斯艾尼及亚火箭与空间公司将为绕月飞行制造必需的设备。 |
| 5. | For the circling moon phase mission , this paper proposes an autonomous optical navigation algorithm using the gauss - markov process and unscented kalman filter
针对绕月轨道段任务,提出了基于高斯-马尔科夫过程和unscented卡尔曼滤波的自主轨道确定方法。 |
| 6. | This year it plans to launch a satellite that will orbit the moon as part of preparations for an eventual lunar landing ( after 2020 , officials say ) by a chinese citizen
今年，中国计划发射一枚绕月人造卫星，为其最终的登月计划（官方称将是在2020年之后）做准备。 |
| 7. | " currently , our country ' s lunar exploration program is divided into three phases - - orbiting the moon , landing on the moon and returning back to earth , " ouyang said
欧阳自远说道： “目前，我国的探月计划分成三个步骤。第一步是绕月，第二步是在月球上着陆，第三步是从月球上返回。 ” |
| 8. | The unscented kalman filter is used to estimate the probe position , velocity and un - model acceleration , which improves the orbit estimation accuracy and ensures the stability of navigation algorithm
数学仿真结果表明,提出的导航方法是可行的,能够满足月球探测器奔月与绕月轨道段导航精度的要求。 |
| 9. | China is firmly against the militarization of outer space , and will never engage in a space arms race of outer space . " the ongoing lunar exploration program has no military purposes , " chen qiufa said
陈求发表示，中国坚决反对搞外空军备竞赛，决不参与太空竞赛，中国此次绕月探测工程也没有任何军事目的。 |
| 10. | For the problems arising from the absence of exact dynamics models , the gauss - markov process is used to approximate the un - model acceleration term in the circling orbit dynamics
利用高斯-马尔科夫过程近似绕月探测器的无模型加速度,并利用基于unscented卡尔曼滤波估计了探测器的位置、速度及无模型加速度。 |
