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FIXED CLUSTER WITH SPIDER-SHAPED HOLDER, RELATED CORE OF A PRESSURISED-WATER NUCLEAR REACTOR, AND SYSTEM INCLUDING AN ASSEMBLY OF NUCLEAR FUEL AND SUCH FIXED CLUSTER
FIXED CLUSTER WITH SPIDER-SHAPED HOLDER, RELATED CORE OF A PRESSURISED-WATER NUCLEAR REACTOR, AND SYSTEM INCLUDING AN ASSEMBLY OF NUCLEAR FUEL AND SUCH FIXED CLUSTER
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机译:带有蜘蛛形固定器的固定簇,加压水核反应堆的相关核心以及包括核燃料和此类固定簇的组件的系统
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摘要
The cluster (1) has pencils (3) inserted in guide tubes of a nuclear fuel assembly. A spider shaped support (5) supports the pencils and has a pommel (7) with a central longitudinal axis (C), and fins (9) radially extending towards the exterior from the pommel. A mounting system of the support mounts the pencils distributed on the fins. Support elements (41) are supported on an upper plate of a core and longitudinally project from the fins beyond the mounting system in a direction vertically oriented towards the top, when the cluster is arranged on the nuclear fuel assembly.
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