| Pellets of nuclear fuel are contained within the fuel rods of nuclear fission reactors. |
| Pyongyang announced it had completed removing spent fuel rods from a nuclear reactor in a key step towards the manufacture of more atomic bombs. |
| To control the reactor control rods made of boron or cadmium are inserted near the fuel rod to absorb neutrons. |
| It has threatened to resume its missile tests and reprocess spent fuel rods from its nuclear reactor, a possible step toward making nuclear arms. |
| Spent fuel rods are extracted from nuclear reactors when their uranium is no longer efficient for producing electricity. |
| Only in these three groups do the jaw elements have cuticular rods with osmiophilic cores. |
