ferromagnetic造句
91 It is sometimes difficult to draw the line separating ferromagnetic from paramagnetic substances.
92 A method of measuring the Curie temperature of ferromagnetic substance by oscilloscope is presented in this paper, showing vividly that the magnetic of ferromagnetic substance varies with temperature.
93 On the basis of the magnetostrictive property in ferromagnetic materials, a technique of inspecting steel pipes based on the magnetostrictive effect is presented.
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