1.
A-weighted equivalent continuous sound pressure leve
Ａ加权等效连续声压级
2.
Measurement of sound pressure level for sound signal appliances by seagoing vessel
GB/T12303-1990海船声号器具的声压级测量
3.
Acoustical Violence-Issues about the Sound Pressure Level of National Centre for the Performing Arts
声暴力——续谈“国家大剧院扩声声压级的讨论”
4.
Metal-cutting machine tools--Measurement method of sound pressure level
GB/T16769-1997金属切削机床噪声声压级测量方法
5.
Acoustics--Reference equivalent threshold sound pressure levels for pure tones and insert earphones
GB/T16402-1996声学插入式耳机纯音基准等效阈声压级
6.
Noise Level Prediction of Gear Transmission System due to Vibration and Sound Signals
基于振动噪声信号的齿轮传动系统声压级预测
7.
Effects of infrasound with low sound pressure level on rats with cerebral ischemia-reperfusion injury
低声压级次声对大鼠脑缺血再灌注损伤的影响
8.
Studies implemented clear sound signals propagation by Loudspeaker System at high SPL and long distance
实现扬声器系统高声压级与远距离清晰传声的应用探讨
9.
Discussion of the Maximum Sound Level for Performance in The National Centre for the Porforming Arts;
国家大剧院演出最大声压级限制的讨论
10.
Uncertainty in Measurement on Sound Pressure Level of Horn for Motor Vehicle
机动车用喇叭声压级测量不确定度分析
11.
Effects of low decibel infrasound on heart function after acute myocardial infarction in rats
低声压级水平次声对心肌梗死大鼠心功能的影响及机制
12.
The figures can be used to easily calculate the sound power level of the sound source inside the duct through measuring the SPL at a single point outside of the duct.
利用这些图和简单公式,通过测量管外一点的声压级就可确定管内声源声功率。
13.
Acoustics--Determination of sound power levels of noise sources using sound pressure--Survey method using a reference sound source
GB/T16538-1996声学声压法测定噪声源声功率级使用标准声源简易法
14.
Determination of transformer and reactor sound levels
GB/T7328-1987变压器和电抗器的声级测定
15.
Aerodynamic Performance Research on Transonic Hige Pressure Stage of Air-Cooled Turbine
跨声速高压气冷涡轮级气动性能研究
16.
Novel primary series matching scheme for piezoelectric ultrasonic transducer
压电超声换能器初级串联匹配新方法
17.
Dipole Source Identification in Last Stage of Propylene Compressor
丙烯压缩机末级偶极子气动声源识别
18.
Limits of sound power level for noise emitted by air compressors (for power source use) and diaphragm compressors
GB7786-1987动力用空气压缩机和隔膜压缩机噪声声功率级限值