tracking system        
[das] 追踪。跟踪。追踪控制。跟踪系统。
tracking control, tracking system, tracking

---

[das] 追踪。跟踪。追踪控制。跟踪系统。道跟踪。
tracking control, tracking system, tracking, track following

---

[das] 控制系统。监控系统。系统。追踪系统。
control system, monitor system, checking system, tracking system, regulatory system, monitoring system

---

[das] 控制系统。监控系统。系统。追踪系统。
control system, monitor system, checking system, tracking system, regulatory system, monitoring system