Military function and operation mechanism of low earth orbit satellites are introduced, and technical parameters of low earth orbit satellites are provided.
介绍了典型低轨道卫星的军事作用和运作机理，并给出了当前在轨低轨道卫星的技术参数。
Return mechanism: the return driving assembly has long service life design of back stop valve and shock-absorbing function, offering easy operation.
回转机构：回转驱动总成具有反转防止阀和减震功能的长寿命设计， 操作更方便。
It analyses the effects and value and function caused by the operation of the Appellate Review in WTO Dispute Settlement Mechanism in that 7 years.
第四部分是上诉审对WTO争端解决机制的积极影响。全面分析了WTO上诉审运作7年多来的实践所产生的实际效用及其价值与功能。
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