1.
Journal of Audiology and Speech Pathology
;
(6)1997.
Article
in Chinese
| WPRIM
| ID: wpr-519699
ABSTRACT
0.01).Conclusion The change of thresholds mainly happened in the first working year.As working time increased,the incidence of ears without any response to the maximum output and the thresholds from 18 to 20 kHz were changed more significantly after 4 years working time.The examination of hearing at 10~20 kHz was required for new noise exposure workers and during the first working year,which helped to find the possible susceptibility of subject to noise damage.