旋转六角反射镜
rotating hexagonal mirror
旋转扫描反射镜
rotating scanning mirrors
分布布拉格反射镜反射率
distributed Bragg reflector(DBR) reflectivity
反射旋转群
reflection-rotation group
新型偏轴旋转反射面天线
New torns rotating round a bias axis
旋转反射对称
symmetry of rotatory inversion
旋转反射轴
axis of rotatory reflection
rotation-reflection axis