累积裂变产额
accumulative fission yield
cumulative fission yield
中子产额测定
Neutron yield determination
保持裂变产物的涂敷燃料颗粒
fission product retaining coated fuel particle
长寿命裂变产物
long term fission product
long-lived fission product
long lived fission products
长寿命裂变产物核素
long-lived fission products
大截面裂变产物
high cross section fission product
独立分裂产额
independent fission yield