source region

基本解释

They then linked each sample with its likely source region and calculated the rate of dust deposition over time.
之后研究人员通过沙尘样本找寻到其对应来源地，并计算这些沙尘随时间积聚的速率。
Natural and artificial factors of grassland degradation in Maduo County in source region of Yellow River were analyzed in this paper.
对黄河源区玛多县草地退化的自然和人为因素作了深入分析。
The largest earthquake worldwide during the past 200 years (magnitude 9.5 in May 1960) had a source region approximately 230 kilometers (140 miles) north of the February 27 quake.
在过去两百年中最大的地震（1960年5月9.5级地震）大约发生在此次2月27日地震以北230公里（140英里）处。

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.
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

They are working with the Not For Sale Campaign to source from that region specifically to benefit the producers and communities, bringing the material to a Cambodian manufacturer also committed to a fully transparent supply chain.
FORBES: Wisdom Of A CSR Pioneer
Interestingly, Lithuania's nuclear power plant in Ignalina (4) provides a major source of electricity for the region.
CENTERFORSECURITYPOLICY: Center For Security Policy