Grass is the main vegetation of the source region, accounting for 79% of the whole region.

草地是江河源区主要覆盖植被，江河源区草地面积占土地面积的79%。

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Europe is the source region of international law. The study of the relationship between international law and national law has appeared early in England.

欧洲是国际法的发源地，关于国际法与国内法关系的学说最早于英国出现。

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Infiltration is an important process in hydrologic cycle, in the source region of Yangtze River, infiltration of soil moisture has impact in runoff and plateau ecology.

入渗是水文循环过程中一个重要环节，在长江源区，土壤水分入渗对径流的影响很大，也是高原生态系统重要的影响因素。

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The vast reddish desert that covers much of Somalia's central Mudug region has always been a source of wealth, as well as calamity, for thousands of pastoral families.

VOA: standard.2009.10.06

It's this - its cells in this region here, this inner cell mass that that's the source of embryonic stem cells, cells from inner cell mass here.

就是这个,在这片区域的胚胎细胞,即内细胞群,而胚胎干细胞的来源所在,就是源自这里的内细胞群

耶鲁公开课 - 生物医学工程探索课程节选

Its Austrian rival, Erste Bank, thinks that retail banking is the main source of profit in the region, and so has bought retail banks with market shares of around 20% in the Czech Republic and Slovakia.

ECONOMIST: Bank Austria and Hypovereinsbank: Running repairs | The

They have been, after the government, the sole source of job creation in the region.

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Warring insurgent groups, such as the Ugandan-based Lords Resistance Army (LRA) and the Hutu-backed militia known as FDLR, operating in the eastern DRC are a main source for instability in the region, the agency said.

CNN: UNICEF reports sexual violence in the Congo region