截錐磨頭 truncated cone: 截頂錐; 截頭圓錐體; 截錐體; 削平的火山錐; 載錐體frustum of a cone; truncated cone: 截錐truncated point: 截點circular truncated cone: 截圓錐; 圓臺double-truncated cone seal: 雙截頭圓錐密封下載手機詞典可隨時隨地查詞查翻譯