first-order spectra first-order spectrum first-piece time first quantum number first-rate first-rate quality firsts first shape first sorting first speed first-stage cofferdam first tap first-to-claim system first-to-file system first vacuum fish fish-back file fish-bellied fish-bellied beam fish-bellied girder |
first-order spectra спектър от първи порядък Търсената дума е намерена |