1) disc type flaw
圆片形缺陷
2) roundness fault
圆形缺陷
1.
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.
针对油管容易遭到腐蚀性损伤而目前缺乏有效检测手段的现状，本文系统的研究了平面圆形缺陷模型，提出了圆形缺陷的法线分量漏磁场的实验分布模型。
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
补充资料：点缺陷(见晶体缺陷)
点缺陷(见晶体缺陷)
point defect
点缺陷point defeet见晶体缺陷。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条