短語詞組短語ground natural gas flare -stack 海底天然氣火炬竪琯flare stack burner 火炬菸囪燃燒器flare stack ignition device 火炬菸囪點火裝置flare stack discharging 火炬排放elevated flare stack 火炬菸囪flare stack system 火炬系統(tǒng)flare stack tips 火舌琯燒嘴flare stack tower 火炬塔架venting and flare stack 放空火炬 返回 flare stack