The main control panel control panel and the ways between the external microcontroller using serial communications technology has greatly improved the system's stability and security.

主控制板与外围路数控制板之间采用单片机的串行通信技术，大大提高了系统的稳定性与安全性。

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The reserve control panel. It has fewer buttons, lights and levers, but it is still able to make the main operations.

备用控制面板。它的按钮、显示灯和操作杆都更少，但同样能够进行主要的操作。

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The thesis discusses on how to research and then design the LED video panel system, which is a typical product of computer digital video system, by using the PLD chip as the main control logic.

本论文讨论用PLD芯片作为主要控制逻辑来设计计算机数字视频系统的一个典型应用型产品——LED视频电子显示屏系统的研制方法。

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Users could change their main net service provider by going to the Connections section of the Internet Options folder on the Windows Control Panel, said Mr Peacock.

BBC: AOL rejects software complaints