裂变材料

fissionable material

to split / to crack / to break open / to rend

fission

to change / to become different / to transform / to vary / rebellion

material / timber / ability / aptitude / a capable individual / coffin (old)

material / data / makings / stuff / CL:個|个[ge4],種|种[zhong3]

(raw) material / data / (fig.) person who has the potential to do the job

material / stuff / grain / feed / to expect / to anticipate / to guess

fissile material