active laser substance的用法和样例：
- This article sum up the guide principle?development and actuality of laser seeker in semi active laser guided weapons, emphasizing its structure and function?speciality.
- Current situation and future development of semi active laser guided missiles were reviewed. Two components and the key technologies of semi active laser homing head were analysed.
- Estimation of the operation range of the active laser surveillance
- Novel method for return signal detection in active laser detection
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