说明：  linux C与浙大明泉废气分析仪串口通讯及检测流程实例，通过串口开、关废气分析仪，并从废气分析仪中读取检测到的数据信息。
(linux C and Zhejiang Ming Quan exhaust gas analyzer serial communication and testing process instance, through the serial port and off exhaust gas analyzer, and read information from the data detected in the exhaust gas analyzer.)