堆内试验 meaning in English

in-pile test

Transient experiment is introduced , whose research method is that absorber is moved down and up with different speed , power of fuel rod changes with different speed as well , so behavior of fuel rod will be studied . physics design is most important in transient experiment
本文简述了国内外压水堆高性能燃料棒研究的发展情况，提出了我国进行压水堆高性能燃料棒瞬态行为堆内试验(以下简称瞬态试验)的紧迫性、必要性和可能性。