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5月20~24日,长江流域水运科技情报网在扬州召开了船闸自动化技术交流会议。有13个省市和交通部情报所的代表参加会
May 20 ~ 24, the Yangtze River Basin Water Transport Technology Information Network held in Yangzhou Ship Lock automation technology exchange meeting. Representatives of 13 provinces and cities and the Ministry of Communications attended the meeting