An increase in oil product demand and in refineryprocessing volumes helped crude oil import to rise again after last year's decline.
石油产品需求上升和炼油厂加工量增加，使我国原油进口在去年下降之后恢复增长。
2
In processing high sulfur crude oil, the YPC refinery gradually found that the sulfur had harmful effects to quality of its products and causing equipment erosion.
扬子炼油厂在加工高硫原油过程中，逐步感受到硫对产品品质、设备腐蚀的影响和危害。
3
The production structure and quality of the refinery system will be affected in some extent by processing a part of Russian crude petroleum in Yanshan refinery.