active detection
活性检测
主动检测
主动监测
主动探测
有源探测
有源检测
主动法
active detection fingerprinting
active detection technique
active-active transient mode-locking technology
biological active determination
heliborne long-range active sonar (Helraps)
Keywordlaser active detection
long range active detection system {= LORAD}
underwater active detection
passive sonar detection