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- impulse orbit transfer 冲量变轨
- Based on relative motion equation of satellite state transferring, analytic solution of two-impulse orbit transfer of constellation is derived, which is analytic equation of impulse control variable. 基于卫星相对运动状态转移方程，推导出了星座双脉冲式变轨的理论解，即所要施加的脉冲控制量的解析式；
- By comparing with Hohmann orbit transfer, the aeroassisted orbit transfer decreased fuel consumption obviously. 通过与霍曼轨道转移相对比，气动辅助变轨明显地降低了燃料消耗。
- Abstract The Gauss pseudospectral method was used to solve the coplanar aeroassisted orbit transfer from high earth orbit to low earth orbit (HEO-LEO). 摘要 将高斯伪谱法用于共面高轨道到低轨道航天器气动辅助轨道转移的研究。
- Fuel-optimal coplanar orbital transfer using the advanced variable specific impulse magnetoplasma rocket (VASIMR) is studied.Thrust direction and specific impulse are considered as control variables. 摘要以国外目前正在研制中的变比冲磁等离子体火箭发动机(VASIMR)为背景，研究了变比冲发动机作用下的同平面燃料最优轨道转移。
- China “Shenzhou seven” the spaceship on 25th lifts off smoothly, and the orbital transfer is before dawn successful on 26th. 中国“神舟七号”宇宙飞船25日顺利升空，并于26日凌晨变轨成功。
- To develop light, reliable, sanitary space station maneuverable orbital transfer thruster, the novel gas dynamic resonance ignition method was applied. 为研究轻型、可靠、环保的空间站机动变轨发动机,在氢氧液体火箭发动机头部设计中引入了新型气动谐振点火技术。
- China's first lunar probe Chang'e-1 completed its first orbital transfer Thursday afternoon, another key move in its 380,000-km journey to the moon. 中国的第一台月球探测器嫦娥1号在它的380,000公里旅途结束了它的第一个变轨星期四下午，另一关键移动到月亮。
- We were seized by a sudden impulse to run. 我们身不由己突然想跑。
- His irresistible impulse to set fire to shoe shop. 他放火烧鞋店的不可抗拒的冲动。
- The spacecraft is in orbit around the moon. 该航天器在绕月球轨道运行。
- He bought the house on an impulse. 他凭一时冲动买下了这所房子。
- Automatic Fast Orbit Transfer Control Based on Model Prediction 基于模型预测的轨道自主快速大机动控制
- The space shuttle will orbit a weather satellite. 太空梭将把一个气象卫星送入运行轨道。
- He felt an irresistible impulse to jump. 他突然有个无法抗拒的冲动，想跳下去。
- My uncle bought the house on an impulse. 我叔叔一时冲动买下了那房子。
- The launch vehicle lifts the satellite into orbit. 太空火箭将人造卫星送入运行轨道。
- Something of circular form; a circle or an orbit. 圆形物体圆形物体; 圆圈或环形轨道
- An irresistible impulse to sneeze. 抑制不住的想打喷嚏的冲动
- The spacecraft is in orbit (ie moving in orbit) round the moon. 该航天器在绕月球轨道上飞行。
