查询词典 noise-power-ratio

Methods Take the audibility threshold、basilar membrane stretched preparation and immunofluorescence stain as the index, observing that the rats were put in the stationary noise before 30days until after that for 7days, have vitamin E and sodium chloride , check the auditory brain stem potential and the lost rate and NF-κB of the OHC in the cochlea hair cells expression quantitative analysis.

以听阈、耳蜗基底膜铺片及免疫荧光染色为指标，观察大白鼠在稳态噪声持续暴露之前30天至暴露后7天，灌维生素E或生理盐水，对大白鼠听觉脑干电位分析和耳蜗外毛细胞丢失率分析及NF-κB在耳蜗毛细胞中表达定量分析。

His voice was barely audible above the noise of the machinery.

在机器的轰鸣声中，他的声音几乎听不见。

His voice was scarcely audible above the noise of the wind.

在风声中，他的声音几乎听不见。

Mitsubishi has led the way in audible noise reduction, and this one is as quiet as they come.

三菱领导在听到降噪方式，而这一次似乎平静他们来。

In an environment of 50±3dB background noise, with the audiometer developed by the authors, and an electric otoscope, the hearing of 195 infants aged 38 - 93 days in Beijing area were examined.

在背景噪声为50±3dB环境，使用作者自行研制的BA-33型听力筛查仪和电耳镜对195名北京市区38-93天的要儿进行检查。

Key words:noise; hearing loss; audiometer

噪声；听力损伤；听力计

Methods Pure tone audiometry,SISI,ABLB and white-noise masking effect(Langenbeck's methods) audiometries were performed in 30 patients (44 ears) with sensorineural hearing loss with BOSCH audiometer made in Germany.

用德国产BOSCH听力计对30例(44耳)感音神经性听力损失患者作纯音测试和阈上测听(包括Langenbeck，SISI和ABLB试验)，比较三种试验相对于三种听力曲线及1，2和4 kHz三频率的阳性结果。

The objective of this study was to evaluate hearing threshold shifts and DNA damage using Pure-tone audiometry and comet assay in paper recycling workers who had been chronically exposed to noise in the workplace.

过去的研究已显示废纸回收造纸厂的噪音作业环境会引起不同程度的听力损失，但并没有相关的研究显示是否会引起DNA损伤。

A growing number of studies have shown that a serious noise pollution will affect the fetal auditory organ development.

越来越多的研究表明，严重的噪音会影响胎儿听觉器官的发育。

It can also decode well under other noise, QSB, QRM, flutter and auroral conditions.

其他的噪声下，它也能够很好地解码：QSB，QRM，扑动和极光的条件。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。