- double-bank superheaters
- • двустъпален паропрегревател
English-Bulgarian polytechnical dictionary . 2013.
English-Bulgarian polytechnical dictionary . 2013.
Three-drum boilers — Three drum boiler, casing removed … Wikipedia
Cotton mill — A cotton mill is a factory that houses spinning and weaving machinery. Typically built between 1775 and 1930, mills spun cotton which was an important product during the Industrial Revolution. Cotton mills, and the mechanisation of the spinning… … Wikipedia