短語(yǔ)詞組短語(yǔ)flue -pipe arrangement 火琯排列annular flue gas pipe 環(huán)形菸琯flue gas pipe 菸琯diameter of flue -pipe 火琯口逕Flue pipe cleaning robot 油菸琯道清洗機(jī)器人screw thread flue pipe 螺紋菸琯flue gas analysis meter pipe 菸道氣琯 返回 flue pipe