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.
许多年来，人们一直在探索粉尘治理的妙方，以寻求降低粉尘、改善作业环境，但效果不很理想。
For many years, the people in exploration dust government method continuously reduce the dust, the improvement work environment, but the effect is not very ideal.
通过对粉尘污染的治理，改善了矿山工人的作业环境，实现清洁生产，降低了职业病的发病率。
Through the control of dust pollution, the working environment of mine worker is improved, the clean production is realized, and the incidence of the occupational disease is reduced.
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