噪声测定仪/声级计(教学仪器)型号:XE66-16040库号:M247117
测量范围40-130dB,分辨率0.1dB,数字显示
噪声测定仪/声级计(教学仪器)型号:XE66-16040库号:M247117
............................................................
............................................................
............................................................
............................................................
.............................................................
.............................................................
.............................................................