引入积分绝对平均曲率来描述可定向闭曲面的平均弯曲程度。
Integral absolute mean curvature is introduced to describe average curving of an orientable closed surface.
这是一个绝对错误，可以用角度或者弧度测量，同时，其曲率包络线也将产生G 1错误。
This error is an absolute error, an Angle, and it is measured in deg of rad and it is the G1-error of the envelope.
有效测量值包括眼轴长度，角膜曲率和绝对屈光误差值等内容。
Efficacy measures include axial length, keratometric power and mean absolute refractive error.
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