electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance
双语例句
There is no sound from the speaker system. 扬声器系统没声音。
The reproduced sound quality of panel speaker is still far from the conventional high fidelity loudspeaker system, which can only be solved by enhancing the theoretical study. 平板扬声器的声重放质量与传统高保真扬声器系统相比仍有较大差距，要从根本上解决这个问题就必须加强理论研究。
