The radar differs from previous scanning entomological radars in its use of digitized rather than analogue signals in the production of a plan-position indicator (PPI) display.是什么意思_The radar differs from previous scanning entomological radars in its use of digitized rather than analogue signals in the production of a plan-position indicator (PPI) display.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句