1) overall sound pressure levels
总声压级
2) overall sound pressure level
总的声压级
3) Total Noise Level
总噪声级
4) total sound pressure level
噪声总声级
1.
We studied the total sound pressure level test data in an annular combustion chamber of aircraft engine by Grop Method of Data Handing(GMDH).
通过简单的二元二次回归原理来构造出下一代较为复杂的次级回归方程,并且利用"优选原理"淘汰掉次级回归方程中的那些不理想的项,得到燃烧室噪声总声级的高阶方程,获得较客观的描写复杂非线性系统的非线性模式。
5) sound pressure level
声压级
1.
The fluidization behavior of 5-10 nm SiO2 and Fe3O4 particle mixtures was investigated in a fluidized bed of 56 mm diameter under different sound pressure levels and sound frequencies.
053 mm)为客体颗粒,在声压级为90~105 dB时系统考察了声场频率、声场强度和主客体颗粒不同配比关系对超细颗粒流化行为和聚团尺寸的影响。
2.
Through the spot measurement of the pump and downstream pipeline noise,and analyzing the spectrum analysis curve of sound pressure level and sound intensity level,this paper offers basis for the fundamental reason study of high vibration and noise,and puts forward t.
通过对泵及下游管线噪声进行现场测量,以及对各测点声压级谱分析曲线和声强级谱分析曲线的分析,为研究其振动和噪声高的根本原因、提出合适的改造方案提供依据。
3.
In″Panel Experiment″,two diagrams of sound pressure level vs.
本文以网络共聚物(蓖麻油/TDI+HEMA)为阻尼材料,对自由阻尼板作了噪声频谱分析,观察到在约千周以上频区,声压级较裸钢板有明显降低,对覆盖阻尼材料的钢条样品的内耗变频测量表明,内耗随频率而增加,说明自由阻尼板声压级的降低是由自身内耗随频率增大所引起。
6) SPL
声压级
1.
The effect of the bubbles in aeration flow on the Sound Pressure Level(SPL) difference and the cavitation noise intensity in pressure relief model is investigated based on the acoustical characteristics of the bubbles.
根据气泡的声学特性,对掺气水流中气泡可能对减压实验中声压级差和空化噪声强度测量结果造成的影响作了初步的理论探讨。
2.
Combining with the national and foreign related standards, the selection of SPL(Sound Pressure Level) of sound reinforcement system is discussed in terms of technique and implement.
从技术和实际应用角度,结合国内外相关标准,对扩声系统声压级的设置进行了论述。
补充资料：社会总产品与社会总产值
社会总产品，是指社会各个物质生产部门在一定时期内（通常以年度为单位）所生产出来的全部物质产品的总和。社会总产品也就是社会的商品资本总体，它们的价值也就是社会总产值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条