small angle longitudinal wave probe 小角度纵波探头
longitudinal wave angle probe 纵波斜探头
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The experiment results indicted that there existed fairly good linearity between the grain sizes and longitudinal wave velocities when the measurements were done with 5p14z probe.
实验结果表明，用5 P 14 Z探头测得的纵波声速与晶粒尺寸之间有很好的线性关系。
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