laser jam有源干扰lasern.激光；镭射laser radiation detector激光辐射探测器Laser warning technology激光告警技术Laser Doppler technology激光多普勒技术laser-induced emission激光致发射Laser plasma interaction激光等离子体laserHybrid welding head激光复合焊头laser welding hull plate焊接船板laser measuring velocity激光测速laser raman spectrometry激光喇曼光谱法laser stereo lithography激光立体制版