累积裂变产额
accumulative fission yield
cumulative fission yield
裂变产额测定
Determination of fission yeilds
临界裂变链式反应
critical fission chain reaction
受控核裂变链式反应
controlled nuclear fission chain reaction
保持裂变产物的涂敷燃料颗粒
fission product retaining coated fuel particle