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道路交通信号系统;德文版本FprEN 50556:2017
Road traffic signal systems; German version FprEN 50556:2017
参考页数:97P.;A4
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道路交通降噪装置规范:德文和英文版本prEN 14388:2017
Road traffic noise reducing devices - Specifications; German and English version prEN 14388:2017
参考页数:49P.;A4
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道路交通减噪设备. 测定声学性能的试验方法. 第2部分: 扩散声场条件下气载声音隔音的本质特征; 德文版本EN 1793-2-2018
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions; German version EN 1793-2:2018
参考页数:15P.;A4
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道路交通噪声降低装置. 声学性能测定的试验方法. 第6部分: 固有特性. 直达声场条件下空气隔音的现场测定值; 德文版本EN 1793-6-2018
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions; German version EN 1793-6:2018
参考页数:50P.;A4
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道路交通噪声减低装置.声学性能测定的试验方法.本质特性.直接声场条件下现场空气传声隔绝值
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics. In situ values of airborne sound insulation under direct sound field conditions
参考页数:48P.;A4
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道路交通噪音减低装置.测定声学性能的试验方法.扩散声场条件下空载隔音固有特性
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions
参考页数:16P.;A4
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道路交通减噪设备. 测定声学性能的试验方法. 第2部分: 扩散声场条件下气载声音隔音的本质特征; 德文版本EN 1793-2-2018
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions; German version EN 1793-2:2018
参考页数:15P.;A4
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道路交通噪声降低装置. 声学性能测定的试验方法. 第6部分: 固有特性. 直达声场条件下空气隔音的现场测定值; 德文版本EN 1793-6-2018
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions; German version EN 1793-6:2018
参考页数:50P.;A4
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道路交通降噪设备.非声学性能.机械性能和稳定性要求
Road traffic noise reducing devices. Non-acoustic performance. Mechanical performance and stability requirements
参考页数:30P.;A4
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路标材料.道路使用者的道路标识性能和试验方法
Road marking materials. Road marking performance for road users and test methods
参考页数:36P.;A4
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