短語(yǔ)詞組短語(yǔ)cone apex angle 錐頂角cone -apex angle 錐頂角cone apex angle control 錐角調(diào)制half -apex angle 半頂角apex seal sliding angle 徑向密封片滑動(dòng)角z apex angle 半頂角prism 's apex angle 劈尖頂角the forming limit half -apex angle 成形極限半頂角angle at apex 頂角 返回 apex angle