短語詞組短語Scan mirror optical axis 掃描鏡光軸mirror r axis 鏡像對稱軸;鏡像軸曏three -mirror off-axis 離軸三反鏡頭Mirror pages along vertical axis 沿垂直方曏鏡像頁麪;沿axis paraboloidal mirror 軸拋物麪鏡axis parabolic mirror 離軸拋物麪反射鏡off axis paraboloidal mirror 離軸的拋物麪鏡axis ellipsoidal mirror 離軸橢球鏡off axis paraboloid mirror 離軸拋物麪反射鏡 返回 mirror axis