Acoustics - determination of sound power levels of noise sources using sound intensity - part 1 : measurement at discrete points 声学.用声密度测定噪声源的声功率级.第1部分:不连续点的测量
En iso 9614 - 2 acoustics . determination of sound power levels of noise sources using sound intensity . part 2 : measurement by scanning 声学.利用声音强度测定噪声源功率级.第2部分:扫描测量法
Losing and regaining the signal and the level of noise becomes another tool to measure a living space or architecture 讯号的强弱,出现与消失,和杂音的大小成为了另一个量度生活空间的工具。
Acoustics . determination of sound power levels of noise sources using sound intensity . part 1 : measurement at discrete points 声学.使用声音强度法测定噪声源的声强级.第1部分:在分散点上的测量
Acoustics - determination of sound power levels of noise sources using sound intensity - precision method for measurement by scanning 声学.利用声强度对噪声源声功率级别进行的测定.使用扫描精确测量法
Acoustics - determination of sound power levels of noise sources - guidelines for the use of basic standards iso 3740 : 2000 ; german version en iso 3740 : 2000 声学.噪声源声功率级测定.基础标准使用指南
Acoustics - determination of sound power levels of noise sources using sound pressure - precision methods for anechoic and hemi - anechoic rooms 声学.利用声压测定噪声源声功率级.消声室和半消声室用精密法
Acoustics - determination of sound power levels of noise sources using sound intensity - part 3 : precision method for measurement by scanning 声学.使用声音强度法测定噪声源的声强级.第3部分:扫描测量精度法
Acoustics - determination of sound power levels of noise sources using sound pressure - precision methods for anechoic and hemi - anechoic rooms 声学.利用声压测定噪音源的声功率级.吸音室和半吸音室的精确方法
Acoustics . determination of sound power levels of noise sources . guide lines for the use of basic standards and for the preparation of noise test codes 声学噪声源声功率级的测定-使用基础标准与制订噪声测试规范的准则