加速度计被用于运动跟踪器以及统计步数和其它运动的应用程序。它们还被用于全球定位系统应用（GPS）程序。
Accelerometers are used in activity trackers and apps that count steps or other exercise. They also are used in global positioning system apps, also called GPS.
随着目标速度的提高和光电跟踪设备自动化程度的提高，对电视跟踪器伺服系统的跟踪精度提出了越来越高的要求。
With the increase of both object speed and automatic tracking ability of the optoelectronic tracking equipment, higher precision is needed for the servo system in the TV tracker.
随着目标速度的提高和光电跟踪设备自动化程度的提高，对电视跟踪器伺服系统的跟踪精度提出了越来越高的要求。
With the increase of both object speed and automatic tracking ability of the optoelectronic tracking equipment, higher precision is needed for the servo system in the TV tracker.
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