airborne laser detection equipment 机载激光探测设备
laser r detection equipment 激光检测设备
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Laser direct writing system is the key equipment for fabrication of optical diffractive elements, and the defocus detection technique is the important sub-tech in it.
激光直写机是制作衍射光学元件的关键设备,离焦检测技术是其中的重要单元技术之一。
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