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21. | Some types include digitizing tables, joysticks, trackballs, the mouse, touch panels, and light pens. |
| 如下各种类型的设备:数字化仪、操纵杆、跟踪球、鼠标器、触板、光笔等。 |
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22. | tracking computer |
| 跟踪计算机 |
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23. | Input devices include keyboards and pointing devices such as mouse,joystick,track ball, or light pen. |
| 输入设备包括键盘和点击设备如鼠标,操纵杆,跟踪球或光笔。 |
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24. | tracking direction |
| 跟踪方向 |
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25. | optical lock-on |
| 光学跟踪;光学锁定;光学自动跟踪 |
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26. | trace program |
| 跟踪程序 |
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27. | laser tracking |
| 激光跟踪 |
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28. | tracking console |
| 跟踪台 |
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29. | Tracking station |
| 跟踪站 |
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30. | tracking filter |
| 跟踪滤波器 |
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