ISO 389-9:2009
声学.校准测听设备的基准零级.第9部分:基准听力阈级测定的首选试验条件

Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels



推荐


谁引用了ISO 389-9:2009 更多引用





Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号