1.
accordion incorporating electrical means for sound amplification
装有电子扩音装置的手风琴
2.
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
3.
a device for amplifying or transmitting sound.
扩大或者传送声音的装置。
4.
a cone-shaped device held to the mouth to intensify and direct the human voice.
放在嘴边扩大和传送声音的锥形装置。
5.
A device for projecting sound waves, as in a loudspeaker.
角状扩音器一种用来产生声波的装置，如扬声器
6.
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
7.
Will you need a microphone and speakers, overhead, slide or movie projector, or cassette tape deck?
您需要麦克风和扩音器、耳机、灯片或电影放映机或是卡带架装置吗？
8.
air diffusion aerator
空气扩散式曝气装置
9.
a semiconductor device capable of amplification.
能够扩大的半导体装置。
10.
extensiveness input & output control
扩展输入输出控制装置
11.
The conference hall was installed with radio set and megaphone.
会场里设置了收音机和扩音器。
12.
cockpit voice recorder control unit
驾驶舱录音机控制装置
13.
voice-operated gain-adjusting device (VOGAD)
声音工作增益调整装置
14.
a device used to soften the tone of a musical instrument.
柔化音乐器材的装置。
15.
Design of the Control System of the Wafer Expanding Device for IC Encapsulation
IC封装的扩晶装置控制系统的设计
16.
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
17.
tape recorder as one component in a hi-fi system
（高保真度的音响装置中的）录音座.
18.
An electronic device or system for synthesizing speech.
音码器一种合成语音用的电子装置