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应东北勘测设计院的邀请,以格里戈里耶夫为团长的列宁格勒水利设计院专家代表团一行7人,于1992年6月15日～27日对东北勘测设计院进行访问,并与以王永荣为团长的东北勘测设计院专家代表团进行了技术交流与会谈。访问期间,双方专家分别就水利枢纽通航设施、沥青混凝土心墙坝设计以及重力拱坝调查与观测等技术问题,进行了广泛的交流与探讨。
At the invitation of Northeast Survey and Design Institute, a delegation of 7 experts from Leningrad Water Conservancy Design Institute headed by Gregoriyev conducted a visit to the Northeast Survey and Design Institute from June 15 to June 27, 1992, He also held technical exchanges and talks with a delegation of experts from Northeast Survey and Design Institute headed by Wang Yongrong. During the visit, experts from both sides conducted extensive exchanges and discussions on such technical issues as navigational facilities of navigation projects, design of asphalt concrete core wall dams, and investigation and observation of gravity arch dams.