Radar tracking of the shuttle, like the final accurate ground-based navigation, had not yet begun.
对航天飞机的雷达追踪，如最后精确的陆基导航，还没有开始。
Most load balancers today support cookie-based session tracking.
今天大多数的负载均衡器都是支持基于cookie的会话跟踪的。
This assistant system is based on the non-contact visual tracking technology.
本辅助系统是基于非接触式视觉跟踪技术构建的。
This assistant system is based on the non-contact visual tracking technology.
本辅助系统是基于非接触式视觉跟踪技术构建的。
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