NC machine is a typical electromechanical integration equipment, and Servo system is also an important component of the NC machines.

数控机床是典型的机电一体化设备，而伺服系统是数控机床的重要组成部分。

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So improving the tracking ability of a theodolite for the fast moving target is the orientation of the photoelectrical tracking and servo system all along.

因此提高光电经纬仪跟踪快速运动目标的能力，一直是光电跟踪伺服系统努力的方向。

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It is composed of the head-machine having three degree of freedom and servo system, GPS system, communication system, tilt system and video display system.

该机器人系统由三自由度头部机构及伺服系统、弹出机构、视觉系统、GPS系统、通讯系统组成。

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With Canon's Hybrid CMOS AF System and Movie Servo AF, the camera provides continuous AF for focus tracking of moving subjects by helping to reduce the camera's need to "hunt", resulting in a quick and smooth continuous AF.

ENGADGET: Canon unveils EOS T5i and Rebel SL1, the world's smallest DSLR (hands-on)