In 2000, Apple releases the Pro Mouse, its first mouse with an optical tracking sensor.

2000年，苹果发布自己的第一款光电鼠标ProMouse 。

Objective To evaluate the feasibility and safety of lumbar disc discography carried out in an open MR scanner with an optical tracking system.

目的评价开放式MR扫描仪结合光学追踪系统行椎间盘造影术操作方法的可行性及安全性。

It has now started a search mission in the area with high-tech equipment such as night-vision goggles, radars, and an electro-optical tracking system.

目前救援船已经开始搜索区域运用高科技设备进行搜索任务。采用的高科技设备有夜视镜，雷达和光电追踪系统。

And has a CNC vertical lathe, boring machine large landing, automatic gap submerged arc welding, electro-optical tracking cutting machine and a variety of measurement test equipment.

且拥有数控立式车床、大型落地镗床、自动间隙埋弧焊、光电跟踪切割机以及各类计量检测设备。