1) A Sound Power Level
A声功率级
2) Sound power level
声功率级
1.
Although it is an important regular musical instrument in Chinese music ensemble,its sound power level has not yet been determined.
但是迄今为止,其声功率级尚未予以测定。
2.
The relationship between the octave band sound power levels of similar and model fans at the corresponding duty points has been found from the research,from which the quick calculation of similar fan octave band sound power level at different duty points is available.
相似设计理论在风机系列化过程中起着越来越重要的作用,为简化相似风机声学性能预估的方法,在原有估算的基础上对相似声学的机理做了进一步的研究,得出了相似风机与原型风机在对应工况点倍频程声功率级之间的直接关系,从而实现了相似风机各工况点倍频程声功率级的快速计算方法。
3) sound power level
声功率级，声能级
5) sound power and power level
声功率与声功率级
6) radiated power level
声辐射功率级
补充资料：声功率测量
见噪声的物理量。
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