Never place your tree near a heat source, such as a fireplace or portable heater.

让树远离热源，比如壁炉或便携式加热器。

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Finally, some developers will point out that much of these features and capabilities are also available in OpenOffice, an open-source, platform-portable competitor to Office 2003 and Office 2007.

最后，一些开发者可能指出上述特性和功能在OpenOffice(一个开源的、平台无关的Office 2003和2007的竞争者)大都存在。

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Xpdf is an open source Adobe Acrobat viewer for Portable Document format (PDF) files (because so much online information is sitting in PDF, a PDF viewer is almost like a second browser).

Xpdf是一个开放源码的Adobe Acrobat查看器，用来显示pd f (Portable Document Format)文件(因为有太多在线文档都是pdf格式的，因此pd f查看器几乎就成了第二浏览器了)。

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Users can simply mount the entire flashlight and charger as a unit by doorways and entryways to hazardous locations, thus providing a highly convenient and fully charged portable light source whenever it is needed.

ENGADGET: Explosion-proof flashlight could be the first to outlive its owner

These explosion proof LED flashlights are ideal for operators in hazardous and non hazardous locations who need a highly reliable yet powerful and long lived source of portable illumination for activities such as utilities repairs and plant inspections.

ENGADGET: Explosion-proof flashlight could be the first to outlive its owner

The next step in moving this technology to the field is to develop a portable tripod-based system that houses both the laser source and the IR camera.

ENGADGET: Infrared holography lets rescuers see people through walls, fire, walls of fire (video)