Recently the research of magnetostrictive guided wave technology has been carried out widely and thoroughly because the technology can inspect over long distance from a single position.
近年来,磁致伸缩导波由于具有单点激励即可实现长距离检测的优点得到了广泛而深入的研究。
参考来源 - 磁致伸缩导波检测技术实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
这就是我们现在所说的连续性方程，推导波动方程的必要条件之一。
This is what we now call the equation of continuity, one of the relationships necessary for the derivation of the wave equation.
第三个例子则是在前一个波导管的基础上再加入一个不能传导波的区域，使得原先的波导管一分为二。
A third example builds on the waveguide, adding another non-supporting region to split the waveguide into two.
波力电站性能测试数据，对指导波能系统工程设计和理论研究有着重要的意义。
The data of the performance test of wave power station is important and beneficial to both the wave power station design and to its theoretical research.
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