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。
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。
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.
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