OBJECTIVE:To study hearing injury and damage of workers under noisy condition in Xi'an Aero-Engine (XAE) so as to provide scientific foundation for controlling operation noise.
目的：了解西航公司噪声作业工人听力损伤及损失情况，为噪声作业治理提供科学依据。
OBJECTIVE:To study hearing injury and damage of workers under noisy condition in Xi'an Aero-Engine (XAE) so as to provide scientific foundation for controlling operation noise.
目的：了解西航公司噪声作业工人听力损伤及损失情况，为噪声作业治理提供科学依据。
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