控制论在生物、机械和电子系统方面，联系和控制过程的理论研究，特别是在生物和人造系统这些过程的对比。
The theoretical study of communication and control processes in biological, mechanical, and electronic systems, especially the comparison of these processes in biological and artificial systems.
航空控制塔上的工作人员试图和飞船取得联系。
The Russian aviation workers in the control tower tried to make contact with the ship.
在这些例子中，您将从用户的地址簿中检索联系人、添加新联系人、修改和删除联系人，以及控制联系人提要中返回的数据。
In the examples, you'll retrieve contacts from a user's address book, add new contacts, modify and delete contacts, and control the data returned in a contact feed.
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