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磁性变化
[物] magnetic variation
- 研究了烧结钕铁硼永磁体经液氮冷处理后的磁性能变化规律。
The effects of liquid-nitrogen cryogenic treatment on the magnetic properties are studied. - 用经济、快速的古埃天平法，研究了铁质粉碎机制备试样的磁性变化。
The magnetic changes of the samples prepared from ferrous Wiley Mill have been studied with the economic and fast method of Gouy balance. - HP材料裂解炉管内层渗碳后，由顺磁性转变为铁磁性，测其磁性变化可确定其渗碳程度。
The paramagnetism of HP furnace tubes will transform into ferromagnetism after carburization. The degree of carburization can be determined according to the changes of magnetism.
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