satellite life

The artificial satellite design life-span must need greater than artificial satellite in the orbit working life.

卫星的设计寿命必须要大于卫星在轨工作寿命。

With the rapid development and application of spaceflight technology and information technology, satellite network plays a more and more important role in politic, economy and military area. The relationship between satellite system such as meteorological satellite and our life is closer and closer.

随着航天技术和信息技术的飞速发展和应用，卫星网络在政治、经济和军事等领域的战略地位越来越重要，通信卫星、气象卫星、广播卫星等卫星系统跟人们的生活的关系越来越密切。

Where Is the Proper Place in My Life ASTROMETRY FROM THE ARTIFICIAL SATELLITE

人生的位置在卫星上的天体测量

Reaction wheel ( RW) is one of the most important inertial execution parts of satellite attitude control system, it is widely used as the main execution part in three-axis stabilization satellite that with long life, high precision, multifunctional which be launched in recent few years.

反作用飞轮是卫星姿态控制系统中最重要的惯性执行部件之一，近几年发射的长寿命、高精度、多功能三轴稳定卫星，几乎毫不例外地利用反作用飞轮作为主要执行部件。

How long is the life of a man-made satellite ?

人造卫星 的寿命有多长?

To meet the requirements of the high accuracy, long life large scale satellite, the long life and big momentum wheel must be designed and developed.

为满足长寿命大型卫星控制系统的需要，设计和研制了一种长寿命、大动量矩的动量飞轮。