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1.5米迴旋加速器实验室主厅及试验厅防护大门,是按照苏联的初步设计,在国内进行施工设计的。在结构上存在很多缺点,在加工制造及安装过程中遇到不少困难,苏联专家撤走后,在党的自力更生、备发图强方针的指导下,重新审查并修改了防护门的结构,把主厅升降门改为在轨道上移动的推拉式大水门,试验厅的升降门改为混凝土预制块填塞的洞口。为便于加工、安装及使用,圆转门的结构也作了相应的修改。
1.5 meters cyclotron laboratory main hall and laboratory protection door, is in accordance with the initial design of the Soviet Union, construction design in the country. There are many shortcomings in the structure. During the process of manufacture and installation, many difficulties have been encountered. Under the guidance of the party’s self-reliance and the preparation of plans for the development of the Soviet Union, the Soviet experts reviewed and revised the structure of the protective door after their withdrawal. The main hall lift door to move in orbit on the push-pull large water gates, test chamber lift door into a prefabricated concrete block hole. For ease of processing, installation and use, the structure of the revolving door has also been modified accordingly.