全球定位系统，几个电力转换器和一系列对大量设备发布指令的装置都被关闭了。
The Global Positioning System circuit, several power converters and a set of devices that route commands to various pieces of equipment were switched off.
采用89c51单片机，串口扩展芯片8251、中断扩展芯片8259等器件设计了一种指令格式转换器。
A dictate converter has been designed by using chip computer 89c51, serial extended chip 8251, interrupted extended chip 8259, and so on.
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