Road traffic noise reducing devices - non - acoustic performance - part 1 : mechanical performance and stability requirements 道路交通噪音降低装置.非声学性能.第1部分:机械性能和稳定性要求
Road traffic noise reducing devices - test method for determining the acoustic performance - normalized traffic noise spectrum 道路交通噪音减低装置.测定声学性能的试验方法.标准化交通噪音频谱
Road traffic noise reducing devices . test method for determining the acoustic performance . part 3 : normalized traffic noise spectrum 道路交通噪音减弱装置.声性能测试方法.第3部分:正常交通噪音范围
Road traffic noise reducing devices - non - acoustic performance - part 2 : general safety and environmental requirements ; german version en 1794 - 2 : 2003 降低道路交通噪音的装置.非声学性能.第2部分:一般安
The epd is working with local academics and professionals to devise technological solutions to our traffic noise problem 环保署现正与本港学界和专业人士合作，共同研创技术方案，解决道路交通噪音问题。
Road traffic noise reducing devices - test method for determining the acoustic performance - intrinsic characteristics of sound absorption 道路交通噪音减低装置.测定声学性能的试验方法.声音吸收的内在特性
Road traffic noise reducing devices - non - acoustic performance - part 1 : mechanical performance and stability requirements ; german version en 1794 - 1 : 2003 降低道路交通噪音的装置.非声学性能.第1部分:机械性
Fourth , we are pursuing public education and partnership to make people more aware of the road traffic noise problem 第四，我们通过公共教育和伴合作计划作宣传，务求社会各界意识到道路交通噪音造成的问题。
Road traffic noise reducing devices - procedures for assessing long term performance - part 2 : non - acoustic characteristics ; german version en 14389 - 2 : 2004 道路交通噪音减轻设备.评估长期性能的过程.第2部分
Road traffic noise reducing devices . test method for determining the acoustic performance . part 1 : intrinsic characteristics of sound absorption 道路交通噪音减弱装置.声性能测试方法.第1部分:声吸收的内在特性
