axis of symmetry

所屬欄目:礦物學(xué)專業(yè)術(shù)語

Definition: The axis of symmetry or line of symmetry of a two-dimensional figure is a linesuch that,for each perpendicular constructed,if the perpendicular intersects the figure at adistance “d” from the axis along the perpendicular,then there exists anot ......(本文共 626 字 )     [閱讀本文] >>


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