track system meaning in Chinese

按学生测验成绩编班制。

A moment later he says admiringly, "that tracking system is amazing. "
过了一会儿，他赞叹道，“那个跟踪系统真了不起。”
Since there are two completely separate tracking systems there must be some collimation error or disturbance c .
由于存在两个完全分离的跟踪系统，所以一定有一些校准误差或干扰量c。
The passive tracking system with active assistance
基于有源辅助的被动跟踪系统
The official bug tracking system is now operational
目前， bug管理系统已启动应用。
Vehicle positioning and tracking system using gps and gsm
的车辆定位追踪系统

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