It also discusses some key techniques such as the design of ECL circuit, high speed signal processing and external trigger control.
并对ECL电路、高速信号及外部触发控制等关键技术进行了详细的讨论。
Polling activities, which control the execution of one or more data management activities based on some sort of trigger or event such as an update to data in an external RDBMS.
Polling活动，基于某种触发器或事件，比如更新外部RDBMS中的数据，来控制一个或多个数据管理活动的执行。
The camera can send ane-mail alert to designated users and trigger its two output ports to control external devices.
摄像机还能发送邮件提醒指定用户，并触发两个输出端口用以控制外部设备。
The camera can send ane-mail alert to designated users and trigger its two output ports to control external devices.
摄像机还能发送邮件提醒指定用户，并触发两个输出端口用以控制外部设备。
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