noise level的例句大全

a helical planetary set reduces transmission noise level by up to 10 db.

斜齿行星齿轮装置可使变速器的噪音降低10分贝.

This paper details the synchronous clock principle. Also described are the relationship between the noise level and the distance, the position of the target ship to the hydrophone and errors of distance measurement.

本文较详细的介绍了同步钟测距原理，并对在舰船辐射噪声测量中噪声组与距离关系，目标船相对测量水听器的位置，测距误差等进行了描述。

In the other hand, noise information tested with sound level meter is passed through interface RS-232 to computers.

而噪声则通过声级计由RS-232传入计算机。

Methods: According to our national noise monitoring specification of industry organization, noise monitoring was performed by using a precise sound level meter in 6 subordinate plants of a steel iron plant.

方法：采用2230型精密声级计，参照《工业企业噪声检测规范》对某钢铁厂6个分厂的噪声点进行了监测。

Conclusion Dosimeter can be used to dynamically measure the real individual exposure level of noise for textile workers, the results measured by dosimeter may be equal or higher than those by traditional sound pressure levels using sound level meter.

结论噪声个体计量仪可以连续动态记录挡车工的实际噪声暴露，其结果高于或等于声级计定点测量结果。

According to basic values of ISO standard evaluation of audiometric environment noise by using A-weighted sound level meter is proposed. Different audiometric contents and various frequency ranges are analyzed.

根据ISO标准的基本数值，提出了用A-计权声级评价测听环境允许噪声，分析了不同测听内容和各种测听频率范围的噪声特征。

This paper introduces a new type of portable power-operated aspirator which is composed of tubular piston oilless pump, universal motor, automatic liquid level control system, noise proof and vibration absorptive devices and so on.

介绍一种由筒形活塞无油泵、交直流两用电动机、自动液面控制系统、防噪声和减震装置等组成的新型便携电动吸引器装置。

Construction of a new mezzanine level above the existing MTRC Foo Station inside a noise enclosure.

在现时的地铁美孚站上面隔音罩范围内建造新的夹层楼面.

This article presented the mechanism, design and realization of a nA level CRT leakage current tester, which works in an environment of strong industry noise and extrahigh tension flash-over.

本文讨论了工业现场强干扰及几十千伏高压跳火环境下nA级彩管漏电流测量机理及测量仪的设计与实现。

A low-to-moderate level of ambient noise in a place like a cafeteria can actually boost your creative output.

在咖啡馆这样的地方，低到中等水平范围内的环境噪声能够促进人们的创意输出。

Bitumen concrete road surface have surface level, have not seam, drive a vehicle comfortable, noise low, wearability fine, vibration little, short maintaining advantaging such as being convenient construction time.

沥青混凝土路面具有表面平整、无接缝、行车舒适、噪音低、耐磨性好、振动小、施工期短、养护维修方便等优点。

The degradation of low-light-level image mainly depends on sensitivity, non-linearity and noise of detectors.

微光 图像的退化主要取决于探测器的灵敏度 、 非线性和噪声.

Audiometric Ambient Noise Evaluated by Using A& Weighted Sound Level

用A&计权声级评价测听环境噪声

the discharge pressure give the effect on the flow-induced noise and it get to the lowest sound level at the standard state point.

离心泵出口压力对其流动噪声具有一定的影响，在标准工况处声压级最低。

the method gets the gray-level image distributed by fractal dimension using the dfbr field of the fractal theory to restrain the noise.

该方法利用分形理论中离散分数布朗随机场来抑制噪声得到按分形维分布的灰度图像，采用数学形态学检测连续的特征边缘。

measurement of audio-frequency noise voltage level in sound broadcasting

声音广播中音频噪声电平的测量

young infants face an analogous challenge but not initially at the level of words, but at the lower level of pure noise.

幼儿面对着类似的挑战，只不过一开始不是字而低一级的纯粹噪音。

study on reducing noise of motor with kilovolt level

降低千伏级电机噪声的研究

to determine noise exposure level, we used sound level measurements reported by industrial hygienists .

我们根据工业卫生师报告的结果，作为噪音暴露强度的测量。

Maglev technology has the advantages of no friction, no lubrication, no wear, no noise, long service life etc, so it is quite suitable for the precision machining below the micron level.

磁悬浮技术具有无摩擦、无润滑、无磨损、运行无噪声、寿命长等特点。这种运动方式适合于微米级以下的精密加工。