摘要：描述了ＣＡＮＤＵ型重水堆装卸料系统中最重要的两个支持系统──重水供给及控制系统和油压系统。其中重点描述了两个系统各自的设计要求、主要功能、系统构成以及主要工作流程，以期对这两个ＣＡＮＤＵ堆所特有的系统作一个简要明晰的介绍。

摘要：The development of bifunctional catalysts for the efficient hydrogenation and acceptorless dehydrogenation of N‐heterocycles is a *** this study,Ru_(2)P/AC effectively promoted reversible transformations between unsaturated and saturated N‐heterocycles affording yields of 98%and 99%,***,a remarkable enhancement in the reusability of Ru_(2)P/AC was observed compared with other Ru‐based *** to density functional theory calculations,the superior performance of Ru_(2)P/AC was ascribed to specific synergistic factors,namely geometric and electronic effects induced by P.P greatly reduced the large Ru‐Ru ensembles and finely modified the electronic structures,leading to a low reaction barrier and high desorption ability of the catalyst,further boosting the hydrogenation and acceptorless dehydrogenation processes.