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钢筋混凝土标准技术委员会混凝土结构耐久性学组于1990年lQ月28~30日在天津召开座谈会,邀请20多位专家对学组的活动规划进行了座谈。
The Reinforced Concrete Standard Technical Committee Concrete Structure Durability Group held a symposium in Tianjin from December 28th to 30th, 1990, inviting more than 20 experts to discuss the activities of the study group.