final residuum

• 最后残渣,渣油

final residuum的用法和样例：

例句

1. Many technical problems need be resolved for synthetic gas production based on Ureka pitch instead of residuum.
   以尤里卡沥青替代渣油制取合格的合成气需要解决许多技术难题。
2. A preparing process of petrolic residuum binder using local raw material is introduced briefly in this paper.
   本文简要阐述了试制渣油粘结剂的过程。