heavy oil

• n. (将焦油蒸馏得到的比重大于水的)重油

例句

用作名词 (n.)

1. The heavy oil was quoted at $17 per barrel.
   重油报价为每桶十七美元。
2. Oil Sands and Heavy Oil Technologies Conference and Exhibition.
   油砂和重油技术会议及展览。