|
声学 隔声罩的隔声性能测定 第1部分;实验室条件下测量(标示用)
Acoustics--Determination of sound insulation Performances of enclosures Part 1: Measurements under laboratory conditions (for Declaration purposes)
价格：￥0.00
|
|
|
|
|
|
声学 信息技术设备和通信设备噪声发射值的标示
Acoustics--Declared noise emission values of information technology and telecommunications equipment
价格：￥0.00
|
|
|
|
|
|
声学 汽车车内噪声测量方法
Acoustics--Measurement of noise inside motor vehicles
价格：￥0.00
|
|
|
|
|
|
阻尼材料 复模量图示法
Damping materials--Graphical presentation of the complex modulus
价格：￥0.00
|
|
|
|
|
|
声学 市区行驶条件下轿车噪声的测量
Acoustics--Measurement of noise emitted by passenger cars under conditions representative of urban driving
价格：￥0.00
|
|
|
|
|
|
声学 低噪声工作场所设计指南 噪声控制规划
Acoustics--Guidelines for the design of low-noise workplaces--Noise control strategies
价格：￥0.00
|
|
|
|
|
|
|
|
声学 机器和设备噪声发射值的标示和验证
Acoustics-Declaration and verification of noise emission values of machinery and equipment
价格：￥0.00
|
|
|
|
|
|
声学 关于空气噪声的测量及其对人影响的评价的标准指南
Acoustics-Guide to standards on the measurement of airborne acoustical noise and evaluation of its effects on human beings
价格：￥0.00
|
|
|
|
|
|
|
