earphone

特殊用法circumaural earphone1.头戴护耳式耳机combination earphone1.组合耳机crystal earphone1.晶体耳机double earphone1.双耳机ear canal type earphone1.耳塞hearing aid earphone1.助听器耳机insert (type) earphone1.插入式耳机, 耳塞isodynamic earphone1.等相电动耳机magnetic earphone1.电磁式耳机moving-coil earphone1.动圈式耳机single earphone1.单耳机standard earphone1.标准耳机stethoscope earphone1.听诊式耳机, 听诊器stretched duralumin membrane earphone1.绷紧的硬铝膜耳机telephone earphone1.电话耳机test earphone1.测试耳机
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