Abstract: This design is a kind of design which based on the additional speaker circuits of the original car speaker circuit.

摘要：本设计是在原车喇叭电路的附加喇叭电路的基础上的一种设计。

youdao

The speaker is made by Hon Hai Precision, as are the keypad and printed circuit-board connector.

扬声器由鸿海精密制造，同时它还制造键盘和印刷电路板之间的连接器。

youdao

The organic powersupply circuit is located under the piezo film speaker to reduce surface area.

为减少表面积有机电源电路位于压电薄膜扬声器下面。

youdao

He wrote about 30 books and was in demand on the university circuit as a speaker.

ECONOMIST: Julian Simon

Now Buckley, America's most distinctive public speaker, is giving up the lecture circuit in which he has labored for half a century.

CNN: Lance Morrow: We lose a great speaker, we gain a great book