城乡和地区发展不平衡 urban-rural gaps
地区发展与民生指数 DLI
在不同地区发生地 allopatrically
西北地区发展署 NWDA
该地区发生了霍乱 In the area of cholera ; Cholera occurred in the region
欠发达地区 underdeveloped areas ; less developed areas ; Underdeveloped area ; less-developed regions
由新兴地区发展局 Growth Areas Authority
地区突发公共卫生事件和灾害 public health events and disasters
西部地区人才开发 human resources development in Western China
积极支持东部地区率先发展 to support the eastern region in taking the lead in development
结果表明：福州地区发铬值高于其它两地区，并有非常显著性差异。
The result showed that, hair-Cr content in Fuzhou area is obviously higher than that in other two areas, and has very significant difference.
该地区频发的战争使调查工作变得困难。
Continuous fighting in the region has made surveys difficult.
新的变种可以改善易发洪水地区的水稻生产。
The new variants could improve rice production in flood-prone areas.
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