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Effect Of Ultrasonically Vibrated Cutting Tool on Surface Roughness of Micro Turning

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Lukman Hakim   +5 more
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ULTRASONIC PELVIMETRY

Obstetrical & Gynecological Survey, 1972
In recent years a high accuracy in measuring the biparietal diameter by ultrasonography has been achieved. As this is only one parameter in forecasting cephalo‐pelvic disproportion a study was made to determine whether the true conjugate can be measured by utrasound with approximately the same reliability as the biparietal diameter.
A, Kratochwil, N, Zeibekis
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