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海洋船舶噪声级规定
Regulation on noise levels on board sea-going ships
价格:¥0.00
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金属切削机床噪声声功率级的测定
Determination of sound power levels of noise emitted by metal-cutting machine tools
价格:¥0.00
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声学 家用电器及类似用途器具噪声测试方法 第1部分:通用要求
Acoustics-Household and similar electrical appliances-Test code for determination of airborne acoustical noise Part 1: General requirements
价格:¥0.00
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声学 机器和设备发射的噪声 噪声测试规范起草和表述的准则
Acoustics--Noise emitted by machinery and equipment--Rules for the drafting and presentation of a noise test code
价格:¥0.00
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声学 信息技术设备和通信设备空气噪声的测量
Acoustics--Measurement of airborne noise emitted by information technology and telecommunications equipment
价格:¥0.00
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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
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声学 机器和设备发射的噪声工作位置和其他指定位置发射声压级的测量环境修正法
Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at other specified positions--Method requiring environmental corrections
价格:¥0.00
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声学 机器和设备发射的噪声工作位置和其他指定位置发射声压级的测量现场简易法
Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at other specified positions--Survey method in situ
价格:¥0.00
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声学 机器和设备发射的噪声工作位置和其他指定位置发射声压级的测量一个反射面上方近似自由场的工程法
Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at other specified positions--Engineering method in an essentially free field over a reflecting plane
价格:¥0.00
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