短语词组短語oil bearing horizon 含油地層oil l horizon 含油層group of oil bearing horizon 可採油層組Deepwater Horizon oil rig 深海地平石油鑽井平台Deepwater Horizon oil spill 年墨西哥灣漏油事故Deepwater r Horizon oil rig 深海地平線鑽井平台 返回 oil horizon