The outlining curve of an isometric polygon is one of the un-rounded curves, it is difficult to measure its parameters and calculate the errors. 摘要等距型面輪廓曲線(xiàn)為非圓曲線(xiàn)的一種，對其參數的測量和誤差的計算比較困難，目前尚沒(méi)有統一的評價(jià)標準。
The curvature radius was derivated and the contact stress of the three-arc-sect isometric type surface was calculated through the elastic dynamics theory. 應用彈性力學(xué)理論，推導出接觸點(diǎn)的曲率半徑，對三弧段等距型面聯(lián)接進(jìn)行接觸應力計算。
