an electronic device, consisting of components like transistors or vacuum tubes, used to increase the power or voltage of a signal; also called [[扩大器|擴大器|kuo4 da4 qi4]] or [[强波器|強波器|qiang2 bo1 qi4]]

literally meaning a great vessel takes a long time to complete; used to describe a person of great talent who achieves success or matures later in life.

electronic device used to increase the power or voltage of an input signal

An electronic device used to amplify very weak signals while maintaining high accuracy, commonly used in measurement and test equipment

electronic device that increases the power of a signal to drive a load such as a loudspeaker

to waste one's great talents on petty tasks; used to describe a capable person assigned to an insignificant role