"worn " CNS Standards List |
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CNS 6135-3
2017 Edition Hearing aid-Part3: Hearing aids equipment not entirely worn on the listener 助聽器-第3部:不完全配戴在聽者身上的助聽設備 |
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CNS 6135-3
2000 Edition Hearing aid-Part3: Hearing aids equipment not entirely worn on the listener 助聽器-第3部:不完全配戴在聽者身上的助聽設備 |
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