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drain cock; drain valve (A valve used to drain off material that has separated from a fluid or gas stream, or one used to empty a process line, vessel, or storage tank. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 – АД); drain valve (A valve used to drain off material that has separated from a fluid or gas stream, or one used to empty a process line, vessel, or storage tank. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 Alexander Demidov) |
