1) sound level
声级
1.
Design ang Analysis of Intelligent Sound Level Meter;
智能声级计的设计与分析
2.
Some factors that affect the sound level of the noise emitted from a three-channels nozzle were investigated.
研究了影响三通道喷嘴噪声声级的相关因素。
2) acoustic level
声级
1.
In this paper,the inspection method of detonator output were experimented and evaluated,which includes the plate cutting test(lead plate test), acoustic level inspection, explosion in water and inspection of shock wave in little container,etc.
文章对雷管输出的检测方法进行试验和探讨 ,包括铅板试验、声级测量、水下爆炸和小爆炸容器中冲击波的测量等。
2.
Under given conditions, the shock wave is degraded into acoustic wave and the acoustic level of which depends directly on the weight of explosive charge in the blasting cap.
在一定条件下冲击波衰减成声波，声级的大小直接与爆炸的药量有关。
3) A-weighted sound level
A声级
1.
A-weighted sound level、loudness and sharpness were calculated out as objective evaluation labels of the sound quality.
通过对某生产厂家的空调压缩机进行现场噪声测试,采用评分法对噪声声品质偏好性指标进行主观评价,并计算出A声级、响度和尖锐度值作为声品质的客观评价指标。
2.
The limited Value of specific A-weighted sound level in the present standard JB/ TQh341-84 promulgated by the Ministry, which is applied to determine the unaccuracy of noise characteristics for axial-flow ventilators has been discussed.
论证了现行JB/TQh341-84部颁标准中用比A声级限值来判定轴流通风机噪声特性的不准确性,并提出了A声级限值标准及对高压大流量轴流通风机应采取的降噪措施。
4) A-weighted sound pressure level
A声级
1.
This paper uses the noise predicting software written by the authors,takes the BaoAn converter station for example,and establishes proper sound broadcast model to predict the environmental noise by means of octave sound pressure level and A-weighted sound pressure level.
本文将通过使用作者编写的噪声预测软件,以贵广二回直流工程极2系统调试—宝安换流站噪声预测为例,建立噪声传播模型,分别用倍频带声压级与A声级数据进行预测,并将预测值与现场实测值以及丹麦B&K噪声预测软件Predictor Type 7810的预测值进行对比,以比较两种预测方法的预测精度以及与国外噪声预测软件之间的预测误差,并在此基础上对预测原理进行适当的补充和修正。
5) A - soundlevel , A - weightedsoundlevel
A - 声级
6) noise grade A
噪声A声级
补充资料：声级
见噪声的主观评价。
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