As an appoximate method,MPA is convenient and simple,however,it has more errors on propagation constants and field distributions of high order modes.是什么意思_As an appoximate method,MPA is convenient and simple,however,it has more errors on propagation constants and field distributions of high order modes.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句