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1.机械工业部设计研究院第八次给排水情报会议已于6月22~26日在吉林省长春市第一汽车厂第九设计研究院召开,会议期间交流了本系统内给排水
1. The 8th Water Supply and Drainage Information Meeting of Design and Research Institute of Machinery Industry was held on the 22nd to 26th of June at the 9th Design and Research Institute of Changchun No. 1 Automobile Factory, Jilin Province. During the meeting,