Dynamic analysis model of the nuclearfuelelement and the tube of heat exchangers in nuclear power installation is treated as a multi-spanned continuous beam.
核动力装置中的燃料元件棒和换热器传热管，常按多跨连续梁模型进行动力分析。
2
They had been interested in thorium — a radioactive element that can fuelnuclear reactors but not be processed into weapons.
他们当时对一种放射性元素钍很感兴趣，这种元素能驱动核反应堆，却不能制造生产成武器。
3
The utility model relates to the field of nuclearfuel components, in particular to an upper tube seat of a pressure water reactor fuel element.