【化】 down-convection pipe still

煙道氣的英語翻譯：

【化】 effluent gases; flue gas

下行的英語翻譯：

being issued to the lower levels; down; downriver

式的英語翻譯：

ceremony; formula; model; pattern; ritual; style; type
【化】 expression
【醫(yī)】 F.; feature; formula; Ty.; type

管式爐的英語翻譯：

【化】 pipe furnace; pipe heater; pipe still; process furnace; tube furnace
tube still; tubular furnace