double-beam spectrophotometer double-beam tube double-beat double-bed double bend double beta-ray decay double bevel double-bevel groove double-bevel joint double-bever butt weld double-blade double-bladed cutter double block double-block brake double bond double-bond index double bottom double bracket double-braid double-breadted plough |
double-beam spectrophotometer двулъчев спектрофотометър Търсената дума е намерена |