根据铁磁体具有磁致伸缩特性，提出一种基于磁致伸缩效应的钢管无损检测技术。
On the basis of the magnetostrictive property in ferromagnetic materials, a technique of inspecting steel pipes based on the magnetostrictive effect is presented.
最后我们从实验上检测了铁磁体中磁振子压缩态的存在，并讨论了研究铁磁体中磁振子压缩态的用途。
At last we experimentally detected the squeezing magnons of the ferromagnet and discuss the value of the squeezing states.
海面磁场等值线图是海洋磁探测的最基本图件，从中可以确定水下铁磁体的位置所在。
The contour of sea surface magnetic field is an essential map in Marine magnetic survey. By using this map, the position of underwater ferromagnet is easily defined.
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