| 单词 | 扩音器 |
| 释义 | 〔transistor〕A small electronic device containing a semiconductor and having at least three electrical contacts, used in a circuit as an amplifier, a detector, or a switch.晶体管：一种小型电子装置，包含一个半导体和至少三个电接头并构成一个电路，用作扩音器、检波器或开关〔bullhorn〕A portable device consisting of a microphone attached to a loudspeaker, used especially to amplify the voice.手提式扩音器：一种便携的由麦克风和扩音器连在一起的设备，专用来扩大声音〔megaphone〕A funnel-shaped device used to direct and amplify the voice.扩音器：用来传声或扩音的漏斗形装置〔baffle〕A partition that prevents interference between sound waves in a loudspeaker.隔音板：在扩音器中防止声波相互干扰的隔离装置〔microphone〕An instrument that converts sound waves into an electric current, usually fed into an amplifier, a recorder, or a broadcast transmitter.扩音器，麦克风，话筒：将声波转变成电流的工具，通常接至扩音器，录音机或广播发射机上〔loudspeaker〕A device that converts electric signals to audible sound.扩音器：把电子信号转变为可听见的声音的一种装置〔megaphone〕To transmit (a message) or speak through or as if through a funnel-shaped voice amplification device.用喇叭筒讲，广泛宣传：通过一漏斗形的扩音装置来传达一消息或讲话，或好像通过扩音器一般传达消息或讲话〔sync〕"an effect like that of stereo speakers slightly out of sync"(Time)“象立体扩音器几乎同时发声那样的效果”(时代)〔transducer〕A substance or device, such as a piezoelectric crystal, microphone, or photoelectric cell, that converts input energy of one form into output energy of another.换能器：一种能把输入能量转化为另一种输出能量的物质或装置，比如压电晶体、扩音器或光遇管〔over〕addressed us over the loudspeaker; can't tell you over the phone.透过扩音器对我们演讲；不能通过电话告诉你 |
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