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导向筒为控制棒插入堆芯的导向组件,是带有不均匀放射性、内部具有复杂结构的长圆柱筒体,长度为4 100.79mm,连接法兰最大尺寸为323mm×323mm,一端最大剂量为900 mSv。大亚湾核
The guide cylinder is a guide assembly inserted into the core of the control rod. It is a long cylindrical cylinder with inhomogeneous radioactivity and complicated internal structure. The length of the guide cylinder is 4 100.79 mm, the maximum size of the connecting flange is 323 mm × 323 mm, and the maximum dose at one end is 900 mSv. Daya Bay nuclear