And there is a growing community of hobbyists who attach satellite-positioning units, cameras and other sensors to remote-controlled aircraft, turning them into UAVs.

而且要提到的是，现今社会出现一个日益增长的癖好者的群体，他们偏好将卫星定位装置、摄像装置以及其它传感器装备在远程操控的飞机上，这样飞机也就成了无人机。

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The electronic positioning units are ultrasonic electronic positioning units which are arranged on a fixed frame to transfer measure data to a main control computer in a wireless way.

测量仪为超声波电子定位仪，它们安装在固定架上， 将测量数据无线传输到主控计算机。

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These work modules can also incorporate automatic feeding systems, positioning and adjustment units, robots, subassembly control and test stations and all necessary fixtures.

这些工作模块还可以与自动化送料系统、定位和调试单元、机器人、部件控制和测试站，以及所有必要的夹具进行集成。

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Apple, Jobs' secretive computer and gadget company, has been quietly positioning millions of units of a mysterious new product--almost certainly the new iPhone--in key markets since March.

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Later units will have Global Positioning System chips to eliminate the common mistake--caught by software on Bolofsky's site--of failing to match the street address to a written description of where a car was parked.

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