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supplementary angle,Complementary angle

和等于90°(直角),就说这 两个角互为余角(complementary angle)
和等于90°(直角),就说这 两个角互为余角(complementary angle)余二面角(complementary dihedral angle)是指两个数量相关的二面角
余二面角(complementary dihedral angle)是指两个数量相关的二面角complementary and supplementary angles辅助与补充的角度.ppt
complementary and supplementary angles辅助与补充的角度.ppt余角为什么是complementary angle而补角要是supplementary
余角为什么是complementary angle而补角要是supplementarysupplementary figure 7
supplementary figure 7
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