搜索结果: 1-1 共查到“兽医学 the continent”相关记录1条 . 查询时间(0.078 秒)
Epizootological analysis of PPR spread on African continent and in Asian countries
PPR (peste des petits ruminants) Africa Asia
2010/9/10
The paper presents the results of the study of the PPR spread over the territory of African and Asian countries and contains the overall estimate of its invasion to new territories on the globe via af...