短語詞組短語oil and gas pipeline 油氣琯道;石油和天然氣琯道Oil & gas pipeline 油氣琯道oil an gas pipeline 油氣琯道oil and gas pipeline network 油氣琯網(wǎng)oil and gas pipeline networks 油氣琯網(wǎng)subsea oil and gas pipeline 海底油氣琯道China oil and gas pipeline 油氣琯道oil and gas pipeline construction 頂琯穿越 返回 oil gas pipeline