acoustical level
英
美 [əˈkustɪkəl ˈlevl]
声级
双语例句
- Abstract: In the ordinary pulse echo acoustical imaging system, the details of grey level of the imaging are always blurred by the speckle due to random phase overlapping of backscattering from different elements within a resolution cell, so the resolution of the imaging is destructed.
现行脉冲回波声成像系统，由于分辨元内各背向散射波随机相位叠加产生图像斑纹噪声掩盖了图象灰度级间的细微差别，因而降低了图象的分辨率。 - Since the original acoustical holograms can not be dealt with computer directly, an amplitude range is set up based on the sound pressure level of the object machine at normal condition, and difference map element and difference holographic gray scaled map are defined.
由于原始的声全息图不便于计算机直接处理，以机器在正常运行状态下的声压级为基础设定幅值范围，定义了差值图元素和差值全息灰度图。