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根据投影综合变形公式给出测设变形修正中的“抵偿投影面”选择方案，较好地解决了高等级公路测设中长度综合变形。
According to the projective general deformation formula, the scheme of “offset projection surface” in the correction of measuring and setting deformation is given, which can well solve the mid-length comprehensive deformation of high-grade highway.