Straight linear defects have good performance in wave guidance; while branching linear defects can separate elastic waves with different frequencies.
直线型线缺陷有着良好的导波性能，分支型线缺陷可以实现弹性波的分离。
The magnetic leakage field distribution above linear defects of a tube sample under the geomagnetic field was modeled according to magnetic dipole theory.
利用磁偶极子理论，建立稳恒微弱地磁场作用下管类试件线状缺陷段产生的漏磁场模型。
It can be seen that the experimental results coincide with numerical simulation results to some extent for straight, bend and branching linear defects respectively.
分别研究了直线型、折线型以及分支型线缺陷的情况，数值模拟结果与实验结果基本吻合。
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