Several mirrored units are placed together on a panel, which is mounted on a tracking apparatus to follow the sun throughout the day.

数个镜像单元为一组，被固定在一个随太阳全天轨迹而移动的追踪仪器上。

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The mobile power supply and air-conditioning units are mounted on trailers.

移动电源和空调设备安装在拖车上。

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These are network-situational-awareness systems for dismounted units, complete with a helmet-mounted display screen that uses GPS digital-mapping-display technology, Fuller said.

这两个系统都是步兵装备的网络位置感知系统，包括使用GPS数字地图显示技术的头盔佩戴式的显示器。

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Meanwhile, an entire hall at CES is devoted to the latest in automotive technology, from portable navigation units to rear-mounted cameras which, with the help of a dashboard screen, allow the driver to see what's immediately behind his vehicle while backing up.

CNN: Technology's next frontier: In-car computing

The photovoltaic system consists of three single-axis tracking units mounted to the ground.

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