half-time half-time value half-tone half-tone block half-tone image half-tone negative half-tone photography half-tone picture half-tone plate half-tone transparency half track half-track car half-tracked vehicle half-track tape recorder half-track tractor half-turn half-value layer half-value period half-wave half-wave circuit |
half-time период на полуразпадане Търсената дума е намерена |