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.
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