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tracking, telemetry, command and monitoring
avia. 跟踪、遥测、指挥与监控; 跟踪,遥测,指挥和监控
el. 跟踪、遥测、指挥和监视
space 跟踪、遥测、指挥和监控
tracking telemetry, command and monitoring
earth.sc. 跟踪、遥测、指令与监控