near-andBNC²³⁶²¹³⁺¹ 例句 Starting from the analysis and forecast of supply-demand situation of our petroleum oil in the near-and medium- term, the paper discusses the regional optimizing problem of oil resource allocation. 从近中期我国石油供需形势的分析预测入手，探讨了原油配置的区域优化问题。 cnki