短語詞組短語gas -phase transport 氣相傳輸gas meter transport 氣躰計量輸送oil gas collection transport system 油氣集輸系統(tǒng)oil -gas transport 油氣混輸natural gas transport 天然氣輸送gas transport system 氣躰傳輸系統(tǒng) 返回 gas transport