An image capturing device includes a lens, an image sensor, a focusing unit, a flashlight and a flashlight control unit.

一种影像撷取装置，其包括：一个镜头、一个影像感测器、一个对焦单元、一个闪光灯及一个闪光灯控制单元。

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A controller drives the objective lens via a focusing unit, and detects peaks in the reflected light signal obtained when the objective lens is driven in a focusing direction.

控制器经聚焦单元驱动物镜，并且检测在当在聚焦方向上驱动物镜时得到的反射光信号中的波峰。

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A page is a good unit for focusing on a particular data item or a single task, but most often the information domains in which we work include several data types and have complex or multiple tasks.

页面是集中于特定数据项或单一任务的单元，但通常我们工作所在的信息域包含若干数据类型以及复杂的多个任务。

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Canning and Drew say when they approached writing the songs for Forgiveness Rock Record, they were interested in focusing on a smaller, more stable unit, one they'd been touring with since 2008.

NPR: Broken Social Scene: Leaner Lineup, Same Big Sound

In January 2013 a new EU unit at Europol in The Hague, called The European Cyber Crime Centre, will start operations, focusing on tackling child sexual abuse online.

BBC: Child sex abuse: EU and US in web policing alliance