UNE 83-308-1986 《混凝土试验 超声脉冲传播速度的确定》.pdf

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CJ T 3063-1997 给排水用超声流量计（传播速度差法）.pdf

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GB T 17737.108-2018 同轴通信电缆 第1-108部分：电气试验方法 特性阻抗、相位延迟、群延迟、电长度和传播速度试验.pdf

ASTM E494-2005 Standard Practice for Measuring Ultrasonic Velocity in Materials《测量材料中超声波传播速度的标准实施规程》.pdf

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JUS B B8 121-1990 Laboratory d&ternination of pulse velocities and ultrasoulc elastic constants of rock《石头的脉冲传播速度和超声弹性常数的实验室测定》.pdf

MSZ 18286 1-1979 《建筑石材的能量消耗 物质体积稳定性检测 传播速度检测2》.pdf

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