nitrogen case hardening nitrogeneous nitrogen fixation nitrogen ligand nitroglycerin leakage nitroglycerol nitro group nitro-hydrochloric acid nitrolacquer nitrometer nitron nitronium nitronium ion nitroparaffins nitrophoska nitroso group nitrosonium nitrososulphuric acid nitro-sulphuric acid nitrosyl |
nitrogen case hardening азотиране Търсената дума е намерена |