该文通过实验研究了不同频率、不同噪声级和不同暴露条件下的噪声对人体的心率变异的影响。
The experimental results indicated that the effects of the noise frequencies and exposed conditions on HRV during R-R interval period were significant .
目的比较个体计量仪与声级计评价挡车工噪声暴露的异同。
Objective To compare the virtues and disadvantages between the measure results using individual dosimeter and sound level meter respectively.
目的比较个体计量仪与声级计评价挡车工噪声暴露的异同。
Objective To compare the virtues and disadvantages between the measure results using individual dosimeter and sound level meter respectively.
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