microphone response
电 微音器响应… Read the rest
In'glizche Xenzuche Lughet
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telephone ringer
电 电话振铃器… Read the rest
microphone singing
电 微音器振鸣… Read the rest
telephone set
计 电话机… Read the rest
unidirectional microphone
电 单向微音器… Read the rest
microphone stand
电 微音器座… Read the rest
moving-conductor microphone
电 动导体微音器… Read the rest
telephone switching system
计 电话交换系统… Read the rest
letterphone
计 书写电话机… Read the rest