| 1. | Space systems - unmanned spacecraft transportation - general requirements
航天系统.不载人航天器运输.一般要求 |
| 2. | This rocket was used to launch the unmanned spacecraft shenzhou into orbit in 1999
这支火箭曾于一九九九年运载无人的神舟号太空船进入地球轨道。 |
| 3. | This rocket was used to launch the unmanned spacecraft shenzhou into orbit in 1999 . four identical strap - on first stages allow heavy payloads to be deployed
这支火箭曾于一九九九年运载无人的神舟号太空船进入地球轨道。 |
| 4. | Caption : : interplanetary unmanned spacecrafts are distant and their signals are very weak . using radio antennae , the deep space network was set up for the interplanetary telecommunications
在行星际空间航行的无人探测船，距离遥远，讯号微弱。由多台巨型碟型天线组成的深空网络因此建立，以作行星际的电信往来。 |
| 5. | In 1977 , the us launched " voyager two , " an unmanned spacecraft carrying a 12 - inch copper phonograph record containing greetings in dozens of languages , samples of music and sounds of nature
在1977年,美国发射了"航行者2号"无人操纵太空船,它运载着一个12英寸的记录着许多语言包含问候,音乐以及自然声音的铜片留声机 |
| 6. | Nasa ' s opportunity rover sent its first pictures of mars to earth early on sunday , delighting scientists just hours after the unmanned spacecraft successfully landed on the red planet
美国航空航宇局的探测车“机遇号” ，周日一早把它在火星拍摄的首张照片发回地球，让科学家格外振奋。这张照片是“机遇号”降落火星，并在登陆四小时后传回的。 |
| 7. | Nowadays , at any time and any place , numerous artificial satellites are bustling above our heads beyond the tranquil sky . unmanned spacecrafts bearing the most sophisticated equipment and cameras are sent to study other members of the solar system
现今各类人造卫星无时无刻都在我们头上的天空穿梭配备先进仪器和摄影机的行星探测船也正向太阳系中的成员进行极细致的侦查。 |
| 8. | The aerospace industry is the complex of manufacturing concerns engaged in the production of flight vehicles ， including unpowered gliders and sailplanes ， lighter than air - craft ， ground - effect machines ， heavier than air craft of both fixed - wing and rotary - wing varieties ， military missiles ， space launch vehicles ， and manned or unmanned spacecraft ； propulsion systems and other thrusting devices ； on board equipment essential to the design purpose of the flight vehicle ； and ground - based support equipment needed for the operation and maintenance of the flight vehicle
译文航天工业是一个综合制造行业，从事各种飞行器的生产，包括：各种无动力滑翔机，轻于空气的飞行器，地面效应机械设备，重于空气的各种固定和旋转机翼飞行器，军用导弹，太空发射器，载人或无人飞行器，推进系统或其他助推设备，对飞行器的设计至关重要的舱内设备，控制和维护飞行器的地面设备。 |
| 9. | The aerospace indu * * * y is the complex of manufacturing concerns engaged in the production of flight vehicles , including unpowered gliders and sailplanes , lighter than air - craft , ground - effect machines , heavier than air craft of both fixed - wing and rotary - wing varieties , military missiles , space launch vehicles , and manned or unmanned spacecraft ; propulsion systems and other thrusting devices ; on board equipment essential to the design purpose of the flight vehicle ; and ground - based support equipment needed for the operation and maintenance of the flight vehicle
航天工业是一个综合制造行业，从事各种飞行器的生产，包括：各种无动力滑翔机，轻于空气的飞行器，地面效应机械设备，重于空气的各种固定和旋转机翼飞行器，军用导弹，太空发射器，载人或无人飞行器，推进系统或其他助推设备，对飞行器的设计至关重要的舱内设备，控制和维护飞行器的地面设备。 |
| 10. | To sum up , tested and validated by data sets of shenzhou iv unmanned spacecraft and precise orbit ephemeris , the algorithms presented in the thesis can improve orbit accuracy and reduce random noise considerablely . derived conclusions have important value for reference , and lay the firm technological foundation for future applications
总之，经过神舟四号飞船实测数据计算和精密星历检验，表明本文提出的各种定轨方法可以较好的提高定轨精度，减少随机噪声，所得出的结论对于实际应用具有重要的参考价值，并为将来的应用奠定了坚实的技术基础。 |
