Regional character短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 地域特征 The occurring source of the strong SSW event had strong regional character. The northeast land of Europe- Asia was the region which strong SSW occurred most frequently. 强 SSW事件发生源地有较强的地域性，欧亚大陆的东北部是发生源地最为频繁的地区。 cnki