Figure 4 shows the messaging pop-up window created when your IM agent connects to the server and begins a conversation with the defined user.

图4显示了当IM代理连接到服务器并与定义用户开始会话时创建的消息传递弹出窗口。

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Design validation shall ensure that devices conform to defined user needs and intended USES and shall include testing of production units under actual or simulated use conditions.

设计确认应当保证器械符合之前界定好的使用者需求和预期使用要求，设计确认应当包括在实际或等效的使用条件下的产品单元的测试。

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It's defined in CS50's library; its sole purpose in life is to ask the user for a floating point value and return it.

它被定义在CS50的函数库中，它的唯一目的是,向用户询问一个浮点数的值，然后返回它。

哈佛公开课 - 计算机科学课程节选

But for social products, success is largely defined by user growth.

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By default, bitcoin may not offer anonymity and untraceability like our paper cash today, but it is better described as user-defined anonymity because the decision to reveal identity and usage patterns resides solely with the bitcoin user.

FORBES: Bitcoin Obliterates 'The State Theory Of Money'

Privacy, especially user-defined privacy, sits on a sliding scale that is defined by the individual.

FORBES: The Cashless Utopia Mirage