The working principle and main functional features of the system, as well as the working principle, construction and error sources of the tracking mechanism are introduced.
介绍了系统的工作原理和主要功能特点，论述了跟踪机构的工作原理、结构及其误差。
Adhering to the principle of consultation and joint construction, we shall improve the institutional system and operational mechanism of the Alliance.
——遵循共商共建原则，完善联盟制度建设与运行机制。 不断完善联盟运行机制，建立联盟信息平台；
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