Thus, it becomes a critical problem to design reliable and efficient deep space network protocol to meet the demand of deep space explorations.
因此，如何构建可靠，高效的深空网络上层协议，满足深空探测任务对数据传输的要求成为亟待解决的问题。
On-orbit service techniques of spacecraft become the hot spot for the space explorations of human which are more and more frequent and complicated.
人类日益频繁而复杂的空间探索活动，使得空间飞行器在轨服务技术成为近年来研究热点。
Under the action of solar wind, the magnetosphere boundary is generally deformed like a falling water drop. Theoretical investigations as well as space explorations verify this conjecture.
理论研究与高空探测结果表明，地磁层的边界在太阳风的作用下将发生形变，形成一个水滴式的界面。
On Jan. 9, 1968, the Surveyor 7 space probe made a soft landing on the moon, marking the end of the American series of unmanned explorations of the lunar surface.
1968年1月9日，测量员7号空间探测器在月球表面软着陆，标志着美国对月球表面的无人探测系列任务的结束。
To obtain a more important place in the world in the field of space science with more achievements and carry out explorations and studies of outer space.
空间科学取得众多成果，在世界空间科学领域占有较重要的地位，开展有特色的深。
Now, China is focusing on more ambitious space programs, including lunar explorations and the establishment of space stations.
现在，中国正在集中精力从事更富有雄心的宇宙项目，包括探索月球以及建立太空站在内。
It is believed that fruitful achievements have been made in the field; however, it still leaves much space for further explorations.
认为，十年来，学术界对魏晋南北朝社会史的研究取得了丰硕的成果，但仍然有进一步研究的空间。
Especially in the recent years, the rapid development and application of the near space techniques push the requirements of further explorations and researches of the near space atmosphere.
尤其是在近几年，临近空间的开发利用对临近空间大气的探测与研究提出了迫切的需求。
Especially in the recent years, the rapid development and application of the near space techniques push the requirements of further explorations and researches of the near space atmosphere.
尤其是在近几年，临近空间的开发利用对临近空间大气的探测与研究提出了迫切的需求。
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