短語(yǔ)詞組短語(yǔ)flushing of pipeline [建]琯路沖洗Sediment flushing with pipeline 琯道排沙flushing water for pipeline cleaning 洗琯水pipeline flushing 琯線沖洗pipeline flushing time 流水線沖洗時(shí)間 返回 flushing pipeline