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铁路应用 基础设施 作用于空气传播声音的隔音屏障和相关装置 确定声学性能的测试方法 固有特性 直达声场下的空气隔声…

Railway applications. Infrastructure. Noise barriers and related devices acting on airborne sound propagation. Test method for determining the acoustic performance - Intrinsic characteristics. Airborne sound insulation under direct sound field…

土质. 现场试验. 第8部分: 采用螺旋钻洞法对导水性的测定

Soil quality - Field tests - Part 8: Determination of the hydraulic conductivity by auger hole method

土壤质量 现场试验 第8部分：螺旋孔法测定导水率

Soil quality - Field tests - Part 8: Determination of the hydraulic conductivity by auger hole method

轨道交通 轨道 作用于空气传声的隔音屏障及相关美利体育官网首页网址 测定声学性能的试验方法 第6部分：内在特性 直接声场条件下隔绝空气声的原位值（草案）

Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct so

铁路应用 基础设施 作用于空气中声音传播的噪声屏障和相关装置 确定声学性能的测试方法 第6部分：固有特性 直接声反射下的空气声隔音

Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - Airborne sound insulation under direct sound fi...

铁路应用 基础设施 作用于空气传播声音的隔音屏障和相关装置 确定声学性能的测试方法 第6部分：固有特性 直达声场下的空气传播隔音

Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - Airborne sound insulation under direct sound fi...

非破坏性焊接连接超声波检验接受水平

Acceptance levels for non-destructive ultrasonic testing of welded joints

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（草案）

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

液化天然气 自动液位计的一般要求 第2部分 冷藏式岸罐中的仪表

Liquefied natural gas. General requirements for automatic level gauges. Part 2. Gauges in refrigerated-type shore tanks

石油和石油产品 量油罐容积法标定

Petroleum and petroleum products. Tank calibration by volumetric method.

铁路美利体育官网首页网址 基础设施 降低空气传播噪声的隔音屏障及相关装置 声学特性测定试验方法 第6部分：自身特性 直接传播噪声的隔离

Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - Airborne sound insulation under direct sound f...

铁路应用 基础设施 作用于空气中声音传播的噪声屏障和相关装置 测定声学性能的试验方法 第6部分：固有特性 直接声场下的空气声隔音 ..

Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 6 : intrinsic characteristics - Airborne sound insulation under direct sound f...

铁路应用 基础设施 作用于空气中声音传播的噪声屏障和相关装置 测定声学性能的试验方法 第6部分：固有特性 直接声场下的空气声隔音 ..

Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 6 : intrinsic characteristics - Airborne sound insulation under direct sound f...

铁路应用 基础设施 防噪音屏障及相关美利体育官网首页网址对空气传播声音的影响 确定声学性能的试验方法 第6部分：固有特性 直接声空气隔音效果..

Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - Airborne sound insulation under direct sound f...

铁路应用 基础设施 噪音屏障及相关影响空气传播声音的美利体育官网首页网址 确定声学性能的试验方法 第6部分：固有特性 直接声波下的空气声绝缘

Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - Airborne sound insulation under direct sound f...

铁路应用 基础设施 作用于空气中声音传播的噪声屏障和相关装置 确定声学性能的测试方法 第6部分：固有特性 直接声下的空气声隔音...

Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - Airborne sound insulation under direct sound ...