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道路交通减噪设备. 测定声学性能的试验方法. 扩散声场条件下吸音作用的本质特征
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics of sound absorption under diffuse sound field conditions
参考页数:30P.;A4
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道路交通减噪设备. 非声学性能. 火反应. 减噪设备的燃烧性能和分类
Road traffic noise reducing devices. Non-acoustic performance. Reaction to fire. Burning behaviour of noise reducing devices and classification
参考页数:18P.;A4
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道路限制系统. 行人限制系统. 人行道矮墙
Road restraint system. Pedestrian restraint system. Pedestrian parapets
参考页数:54P.;A4
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道路交通噪声降低设备. 测定声学性能的试验方法. 内在特性. 直接声场条件下声反射的原位值
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics. In situ values of sound reflection under direct sound field conditions
参考页数:62P.;A4
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交通控制设备.信号灯头
Traffic control equipment. Signal heads
参考页数:50P.;A4
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道路交通噪音减少设备.长期性能评估过程.非声学特性
Road traffic noise reducing devices. Procedures for assessing long term performance. Non-acoustical characteristics
参考页数:20P.;A4
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道路交通减噪装置.长期效能评估程序.第1部分:声学特性
Road traffic noise reducing devices. Procedures for assessing long term performance. Acoustical characteristics
参考页数:20P.;A4
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道路交通减噪装置.规范
Road traffic noise reducing devices. Specifications
参考页数:42P.;A4
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公路的安全栏杆和护栅.不张紧式波形梁安全栏杆组件的规范
Safety fences and barriers for highways - Specification for components for untensioned corrugated beam safety fence
参考页数:20P.;A4
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公路的安全栏杆和护栅.敞口的箱形梁安全栏杆(单高)规范
Safety fences and barriers for highways - Specification for open box beam safety fence (single height)
参考页数:28P;A4
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