Through the examination experiment on three tube pieces' crack part, the relation of crack width, the maximum of leak magnetic field and differential coefficient is found out.
通过对三个管件的裂纹部位的检测实验，找出裂纹宽度与漏磁场的最大值和变化梯度之间的关系。
2
In the present study, patients with gastrointestinal tumor were examined by using GI barium examination, CT(computed tomography), MRI(magnetic resonnance imaging).
用于胃肠道检查的影像学诊断技术有多种，最常用的方法有胃肠钡剂检查，CT和MRI。
3
Through the examination experiment on four tube pieces crack part, the relation of crack width, the maximum of leaking magnetic field and differential coefficient K is found out.