Purpose in order to heighten accuracy that ultrasonic measurements in the estimation of fetal weigh.
目的为了提高B型超声预测胎儿体重的准确性。
An online combined NDT technology is introduced, which composed of electromagnetic identification of materials, eddy current and magnetic flux leakage testing and ultrasonic measurements.
在此基础上介绍一种由电磁分钢、涡流探伤、漏磁探伤及超声测量组成的钢管在线组合检测技术及其应用结果。
Ultrasonic velocity measurements have been used to estimate average grain size in TA2 ship titanium alloy.
通过对超声纵波声速的测量来评定船用TA2钛合金的平均晶粒尺寸。
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