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本文叙述了焦度计的误差,顶焦度标准镜片内表面弯度的选择原则,以及标准镜片的测量方法等。并指出必须不折不扣地贯彻与执行对焦度计实施强制检定。
This article describes the error of the power meter, the selection principle of the camber of the standard lens with vertex power and the measurement method of the standard lens. And pointed out that it is necessary to implement and enforce compulsory verification of the focus meter.