听力保护器 meaning in Chinese

hearing protective device
hearing protector

Hearing protectors - general requirements - part 2 : ear - plugs
听力保护器.一般要求.第1部分:耳塞
Hearing protectors - general requirements - part 1 : ear - muffs
听力保护器.一般要求.第1部分:耳罩
Hearing protectors - testing - part 2 : acoustic test methods
听力保护器.试验.第2部分:声学试验方法
Hearing protectors - testing - part 1 : physical test methods
听力保护器.试验.第1部分:物理试验方法
Methods for measuring the real - ear attenuation of hearing protectors
听力保护器的真耳听觉衰减的测量方法

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