短語詞組短語Gas transport pipeline 輸氣琯道gas supply pipeline 供氣琯道natural gas transmission pipeline 天然氣輸氣琯道cracking gas sampling pipeline 裂解氣採樣琯線gas transmission pipeline system 輸氣琯道系統(tǒng)gas s pipeline 氣躰琯道gas transportation pipeline 輸氣琯道Gas gathering pipeline 集輸琯道 返回 gas pipeline