Because normally the electro-acoustic equipment, technical specifications are given quasi-average noise level, rather than quasi-peak noise level, this should be noted.
因为通常电声设备技术指标给出的是噪声准平均值电平,而不是噪声准峰值电平,这一点应加以注意。
What was found is that when people are exposed to a certain level of noise every day for a certain duration, they're going to have a certain degree of hearing loss on average.
我们发现,当人们长期的暴露在某一特定噪音水平环境中,他们平均都会有一定程度的听力丧失。
Conclusion the average equivalent sound level maybe as comprehensive index to evaluate the noise hazard in industrial enterprises.
结论平均等效声级可以作为评价和比较工业企业的噪声危害程度的综合指标。
We want to place our stops farther away from the market than the average level of noise.
我们要把止损放在比平均噪音远的地方。
Obviously, the dynamic threshold is to use quasi-peak level that, while the signal to noise ratio is expressed with the quasi-average levels, and the difference is obvious in.
显见,动态阈是用准峰值电平表示,而信噪比则是用准平均值电平表示的,两者的区别是显而易见的了。
Conclusion ECG and hearing in workers could be affected with long-term exposure to medium low intensity noise, even if the exposure average level was lower than the limited level of hygienic standard.
结论作业人员长期在平均噪声强度低于卫生标准下工作,仍可有一定程度的心电图改变和听力损失。
Other manufacturers such as Seagate and Maxtor liquid in the low-noise bearing applications has been a big step forward, it seems WD hard drive part of the noise level higher than the average.
其他生产商如希捷和迈拓在低噪音的液态轴承应用上已经迈开了一大步,这显得WD的硬盘高出平均噪音水平一截。
With the measurement of average sound pressure level and sound power level, the noise reduction result of the oil pan made by sandwich steel plate was proved.
通过平均声压级和声功率级的测试验证了复合钢板试制的油底壳的降噪效果。
With the measurement of average sound pressure level and sound power level, the noise reduction result of the oil pan made by sandwich steel plate was proved.
通过平均声压级和声功率级的测试验证了复合钢板试制的油底壳的降噪效果。
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