This is certainly true for a plane mirror but it is only approximately the case for other configurations.
对于平面镜这肯定是对的，但是对于其它形状的反射镜则情况只是近似如此。
The image formed by a plane mirror has the same size as the object. it is also equally distant from the mirror as the object.
利用平面镜观看镜像，镜像的大小与物体相同，并且两者与镜面的距离相等。
To an observer standing in front of a plane mirror the image formed has always the same size as the observer. it appears smaller only because it is farther away.
观察者利用平镜所看到的镜像与观察者的大小相同，只是由于镜像距离较远，所以看来较小。
A novel solar illumination system consisting of strip plane mirror array collecting sunlight, light pipe, coupling mirror and grinded plastic tray scattering light was introduced.
提出一种采光面积大、结构简单、制作容易、维修方便的平面反光镜阵列汇聚采光，导光管传光，平面镜耦合，磨砂塑料盘散光的新型太阳光照明系统。
The processing results show that the plane mirror still has enough stiffness even if its lightening ratio is as high as 44.5%, and there is no deformation that will affect processing accuracy.
加工结果表明，该镜的减重比达44.5%，但仍具有足够的刚度，且没有影响加工精度的变形。
The processing results show that the plane mirror still has enough stiffness even if its lightening ratio is as high as 44.5%, and there is no deformation that will affect processing accuracy.
加工结果表明，该镜的减重比达44.5%，但仍具有足够的刚度，且没有影响加工精度的变形。
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