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水电部委托吉林省电力工业局主持召开的φ2.6M 拼装管芯式预应力混凝土管鉴定会于1985年6月26日至28日在长春市召开。出席会议的有水电部基建司、物资局以及全国有关高等院校、科研、设计、施工与生产单位的六十多名代表。代表们通过了现场参观
The Ministry of Water Resources commissioned the Jilin Provincial Electric Power Industry Bureau to hold an appraisal meeting on φ2.6M assembled core prestressed concrete pipes from June 26 to 28, 1985 in Changchun City. The conference was attended by more than 60 representatives of the Ministry of Water Resources Infrastructure Department, the Bureau of Materials and Materials, as well as national institutions of higher learning, scientific research, design, construction and production. Delegates passed the on-site visit