regular geometrical pattern of discrete bodies of fissionable and non-fissionable material in a nuclear reactor. The arrangement is subcritical or just critical if it is desired to study the properties of the system.
korrapäraselt paiknevate punktide hulk
lattice 5 . Geoinformaatika. Институт эстонского языка, Сынавееб 2026. https://sonaveeb.ee/search/unif//geoinf/lattice/5/eng (01.07.2026)