基本解釋盤形底；蝶形端板詞組短語短語dished drum end 碟形汽包封頭dished end plate 碟形端板;凸形封頭dished end plate boiler 凸底鍋爐;蝶形底板式鍋爐;碟形底板式鍋爐dished end of tank 變頸段boiler dished end plate 鍋爐鼓筒碟形端板;鍋爐鼓筒凸形端板dished end更多詞組專業(yè)釋義交通運(yùn)輸工程凸形封頭