from the corrosion standpoint
21Violin construction and mechanics — A violin consists of a body or corpus, a neck, a bridge, a soundpost, four strings, and various fittings. The fittings are the tuning pegs, tailpiece and tailgut, endpin, possibly one or more fine tuners on the tailpiece, and perhaps a chinrest,… …
22Pyrolysis oil — is under investigation as substitute for petroleum. It is extracted by destructive distillation from dried biomass in a reactor at temperature of about 500°C with subsequent cooling. Pyrolytic oil is a kind of tar and normally contains too high… …
23United States Army Research Laboratory — Infobox Military Unit unit name= Army Research Laboratory caption= Logo of the ARL dates= October 1992 Present country= United States branch= Army type= Research and development size= command structure= garrison= commander1= John M. Miller… …
