例文
- The idea would eliminate the need to remove the spent fuel and " clean " it before reusing any newly bred fuel.
- After the reactor is started, four zones form within the core : the depleted zone, which contains mostly fission products and leftover fuel; the fission zone, where fission of bred fuel takes place; the breeding zone, where fissile material is created by neutron capture; and the fresh zone, which contains unreacted fertile material.
