常见例句Because of SPUDT's characteristic.It is very useful to design wide-band low loss SAWF using tapered EWC- SPUDT transducer； 由於SPUDT的特性，把EWC型的SPUDT引入到錐型換能器對制作寬帶、低損耗器件是十分有用的； 返回 SPUDT