sound level的例句大全

the study was undertaken using a sound level meter operated by a passenger in each car tested.

研究用这样的方式进行：每辆接受测试的汽车的乘客开启声音强度测试仪。

industry: muffler noise reduction equipment; meter; special instrumentation; analytical instruments; microphone; sound level meter;

所属行业：消音降噪设备；量仪；专用仪器仪表；分析仪器；传声器；声级计；；

industry: non-contact thermometer; pressure gauge; ph meter; sound level meter; resistance measuring instrument; meteorological instruments;

所属行业：非接触式温度计；压力表；PH计；声级计；电阻测量仪表；气象仪器；；

industry: non-contact thermometer; pressure gauge; meteorological instruments; sound level meter; ph meter; resistance measuring instrument;

所属行业：非接触式温度计；压力表；气象仪器；声级计；PH计；电阻测量仪表；；

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。

Audiometric Ambient Noise Evaluated by Using A& Weighted Sound Level

用A&计权声级评价测听环境噪声

And the present work discusses the shortage of A-weighted sound level in noise evaluation, applicability of interior noise evaluation for high-speed trains using other noise evaluation criteria, and sound quality objective evaluation based on psychoacoustic parameters.

讨论使用A声级评价车内噪声时的不足，研究其他噪声评价指标的适用性并用于评价车内噪声。最后，基于心理声学参量对高速列车车内声品质进行初步探讨。

Mean fully developed braking deceleration MFDD Integrating-averaging sound level meters

充分发出的平均减速度GB/T17181-1997积分平均声级计

the effect of slag splashing is some concerned with the sound level of the nitrogen flow.

转炉溅渣效果与吹氮音平值有一定的关系.

Human auditory perceive not only includes the level, tone and timbre of sound, but also the sound location, which is called the spatial hearing ability.

在人的听觉感受中，除了声强、音调和音色外，还包括对声音空间特性的感觉，这就是人耳的空间听觉能力。

Democracy at the grassroots level will be better practiced. People will enjoy a sound public order and live and work in peace and contentment.

基层民主更加健全，社会秩序良好，人民安居乐业。

Various improvement measures could enhance the activity of soil organic matter and carbon pool management index and raise the level of the soil carbon pool. It was showed that these improvements had effects of fertility-improving and sound development of soil properties.

不同培肥措施均能提高土壤的活性有机质以及土壤的相对碳库管理指数，提高土壤的碳库水平，说明这些培肥措施对土壤有培肥作用使土壤性能向良性发展。

With the treatment of acoustic measures of noise elimination and sound insulation, the reducing of noise level at enter port and operating point exceeds 33dB ( A) and 10 dB ( A) respectively, this comes to the desired results.

经消声、隔声等声学措施后，进风口和工人操作点的噪声强度分别降低33和10dB（A）以上，达到了预期的效果。

The sound is thus recorded at a higher strength on the tape relative to the tape's noise level.

这样相对于磁带的噪音，磁带记录的声音得到增强。

Those parameters often include sound volume, graphic options, multiplayer options, difficulty and starting level.

这些参数通常包含音量调节 、 图像调节 、 多人游戏设置 、 难度以及开始关卡.

then using these figures the relationship between sound power level and sound pressure level radiated by a fan in a suck pipe is obtained easily.

利用这些图就可方便地得到吸气管道内风机辐射声功率级和声压级的关系。

measurement of audio-frequency noise voltage level in sound broadcasting

声音广播中音频噪声电平的测量

Its precision-engineered audiophile circuitry is designed to elevate your system's sound quality to a new level.

其精确的工艺高保真电路设计，提高系统的声音质量提高到新的水平。

Survey and Determination of Acoustic Power Level of Railway Regular Sound Source

铁路常见固定性声源声功率级的测定

Buzzer sound volume level: 10 feet to 85 dB.

蜂鸣器声量能级: 10英尺处为85分贝.