Measurement of electroacoustical characteristics of hearing aids with automatic gain control circuits 具有自动增益控制电路的助听器电声特性的测量方法
Changzhou wujin yueda electroacoustic equipment co . , ltd at ecthai . com - an e - commerce gateway in thailand 常州市武进悦达电声器材有限公司泰国电子商务途径ecthai . com
Ningbo wanligao electroacoustic co . , ltd is a jointventure subordinate to ning bo yipeng electron group 宁波万里高电声有限公司是宁波翼鹏电子集团下属的中外合资企业。
We are specialized in researching , developing and producing hi - quality , high fidelity speakers and audio systems 公司致力于研发、生产和销售高质量，高保真的电声元件及音响系统。
Hearing aids - methods for measurement of electroacoustical characteristics of hearing aids with automatic gain control circuits 助听器.第2部分:带自动增益控制电路助听器电声特性测量方法
Specifications for the editing and production of prog - ramme source for subjective assessment of sound quali - ty of electro - acoustic products 电声产品声音质量主观评价用节目源编辑制作规范
Jiefu expedites the growth step when dedicated in acoustic products r d , stipulates for long - term objective 公司一面致力电声类产品的研制和开发，制订长远发展目标,一面加快企业的发展步伐。
Hearing aids - methods for measurement of electroacoustical characteristics of hearing aid equipment not entirely worn on the listener 助听器.第3部分:不完全由听者佩戴的助听设备电声特性测量方法
