jiàn kāng > yǒng jiǔ xìng tīng yù shàng yí



yǒng jiǔ xìng tīng yù shàng yí (permanentthresholdshift,pts)： zài qiáng liè zào shēng huán jìng zhōng， bù cǎi qǔ rèn hé cuò shī， shǐ tīng jué pí láo zài xiū xī shí jiān nèi yě bù néng wán quán huī fù， chū xiàn zào shēng xìng tīng lì sǔn shāng (hearingimpairment)， bìng jìn yī bù fā zhǎn chéng wéi zào shēng xìng 'ěr lóng (noise-induceddeafness， jí zhí yè xìng 'ěr lóng、 occupationaldeafness)。