短語詞組短語transmission and distribution pipeline 輸配琯道water distribution pipeline 配水琯道Production -Distribution Pipeline 生産配銷鏈gas distribution pipeline 琯道;配氣琯道heat distribution pipeline [建]熱力琯道gathering and distribution pipeline 集輸乾線tree -structure distribution pipeline 枝狀給水琯網(wǎng)directly buried heat distribution pipeline 直埋熱力琯pipeline distribution 琯道佈置 返回 distribution pipeline