lesn mount 透镜座
Pan-Cinor lesn 潘西诺尔镜头
lesn tensino meter 透镜引力仪
long-focal length lesn 长焦距物镜
low-angle radiation lesn 低角辐射透镜
quadrupole focussing lesn 四极聚焦透镜
pivot lesn apparatus 旋转透镜装罝 ; 旋转透镜装
lesn spectrometer 透镜分光计
front lesn mount 前透镜框
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