平頂波形flat: adj. (flatter; flattest) 1.平 ...top: n. 陀螺。 The top sleeps. 陀螺飛速旋 ...flat-topped: 平頂?shù)?/li>flat topped beam: 平頂射束flat topped cam: 平頂凸輪下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯