1)disc type flaw,圆片形缺陷2)roundness fault,圆形缺陷3)ellipse flaw,椭圆形缺陷4)Equivalent circular defect,等效圆形缺陷5)semielliptic flaw,半椭圆形缺陷6)semicircular surface flaw,半圆形表面缺陷
用法例句
In the light of the status that there are caustic faults in the oil well tubing and there are not effective inspections, in this paper the plane roundness fault model of the is studied, and the magnetic leakage flux distributing model at the direction of the normal of the roundness fault is proposed.
