1、侦听器
... dictionaryprintingpaper字典印刷纸 dictograph侦听器 dictophone口授留声机 ...
2、录音电话
... 拷贝机duplicator 录音电话dictograph 打印台inkpad ...
3、速记用电话机
...刷标记用液体 marking-out fluid速记用电话机 dictagraph; dictograph簿记交易, 簿记事项 bookkeeping transactions ...
4、录音机
...录音机 audio recorder; audio tape recorder; cassette recorder; dictagraph; dictaphone, dictating machine; dictograph; phonogram; phonograph recorder; phonographic recorder; recorders; recording machine; sound recorder; sound recording ap...