The antenna servo control system of the satellite is the key part of the entire PAT system, and directly relating to the successful accomplishment of the whole satellite communication task.
卫星天线伺服控制系统是整个PAT系统的核心部件，直接关系到整个卫星通信任务能否顺利完成。
Communication Teaching Method has three main principles about learning: communication, task and meaning.
交际法关于学习的三个原则是沟通原则、任务原则、意义原则。
Communication Teaching Method has three main principles about learning: communication, task and meaning.
交际法关于学习的三个原则是沟通原则、任务原则、意义原则。
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