one of the electrodes in a piece of electrical equipment such as a battery to which negativeions are attracted. It has a positive electrical charge. 正极;阳极
sciencea piece of equipment that changes sound into electrical signals and electrical signals into sound, for example in a telephone receiver(电话机听筒等的)膜片,震动膜
a small metal or carbon object inside an electrical cell or a battery that electricity flows through. There are two electrodes, one positive and one negative. 电极
a set of electronic parts on a single chip (=a small piece of a material that allows some electricity to pass through it), used for performing the same jobs as a number of separate parts that would need much more space 集成电路
liquid crystal display: a thin screen on a piece of electronic equipment such as a calculator, a clock, or a computer that shows the time or other information 液晶显示
a narrow line of metal in a very thin layer that is put on a board to carry an electronic signal instead of a wire. The board it is on is called a printed circuit board. 印刷电路
a part of a piece of electronic equipment containing a number of smallerareas that you touch in order to make it operate, for example on a microwave oven