例句與造句

1. Audio directional loudspeaker is a novel loudspeaker which can generate an audio signal with high directivity by utilizing the parametric array principle
   摘要聲頻定向揚聲器是利用參量陣原理，產(chǎn)生高指向性聲頻信號的新一代揚聲器。
2. It's difficult to find parametric array in a sentence. 用parametric array造句挺難的