短语词组短語negative ovality 負橢圓度inside ovality 內壁橢圓度positive ovality 正橢圓度ovality y 橢圓度zero ovality 零橢圓度ovality detail 卵形度frame ovality 肋骨橢圓度initial ovality 初始橢圓度groove ovality 孔型橢圓度ovality factor 橢圓度系數 返回 ovality