Objective To understand the hearing condition of noise exposed workers in the firepower plant.
目的了解火力发电厂噪声作业工人的听力情况。
2
Methods A hygienic investigation was carried out in a certain artificial gem plant, and dust concentrations and noise level of the workshops were measured.
方法对某宝石厂车间作业环境进行卫生学调查,测量车间环境粉尘和噪声水平。
3
In feed plant, hammermill is one of main facilities, and also a main resource of vibration and noise.