从那以后，锈病从非洲大湖区的角落里蔓延至其他国家，近到南非，远至伊朗（见图）。
Since then stem rust has spread from a corner of Africa’s Great Lakes to countries as distant as Iran and, recently, South Africa (see article).
通过对湖区主要水文控制站的水位流量关系的分析，得到了近四十年来水情变化的一些规律， 供有关部门参考。
The hydrological regime change law is proposed by the analysis of discharge-stage relations of main hydrologic stations in Dongting Lake area in this paper.
本文较为详细地分析了近半个世纪以来的伊塞克湖区实测水文和气象资料。
The sequence of some hydrological factors has been analyzed in detail since the mid century.
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