The theme comes from the project the program development for transient sealing in reactor pressure vessel . this project is the subproject of the research project commissioned by the technical industry committee , department of defense , which is about the advanced reactor design in advanced pressurized water reactor nuclear power station 本論文來源于國防科學技術工業委員會關于先進壓水堆核電站先進反應堆設計技術研究項目(批文號:科工委[ 1999 ] 149號)的子課題“反應堆壓力容器瞬態密封程序研制” 。