Some large restaurant and food chains have released their own apps, but these are only available in certain regions.

一些大的餐馆和食品连锁店已经发行了它们自己的手机软件，但这些只适用于某一确定的领域。

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Rice blast in certain regions on partial high yield and high quality rice varieties is advantageous to occur popularly.

部分地区部分高产、优质但易感稻瘟病的水稻品种种植，有利于稻瘟病的发生流行。

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In certain regions such as Guangdong, the sales of customized cell phones by China Mobile accounts for more than 40% of the market.

在一些特定区域，如广东，中国移动的定制手机销量则已超过40%。

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One of the reasons why you would want to segregate things into certain regions is that molecules have to move in order to accomplish these things; molecules have to move from one place to another.

将细胞功能定位于某个固定区域的,另一个原因是,生物大分子需要移动,以完成某些功能,分子从一个地方移动到另一个地方

耶鲁公开课 - 生物医学工程探索课程节选

Famliy-managed fortunes are concentrated in certain regions of the world, and hardly exist in others.

FORBES: Societe Generale Private Banking and Forbes Insights Analyse Global Wealth and Family Ties

The study highlights differences in the cultural response to science in certain regions around the world.

UNESCO: MEDIA SERVICES

Last year an early onset of the flu caught officials by surprise and the U.S. fell short of necessary doses in certain regions.

FORBES: Broken Eggs