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用ＶＤＴ脉冲磁场、磁通密度峰值４０μＴ和４μＴ（时间导数３．３Ｔ／ｓ和０．３３Ｔ／ｓ）对怀孕小鼠整个孕期进行辐射，每天５小时，每周６天。结果得出：与假辐射组比较，高强度组仔鼠下丘脑琥珀酸脱氢酶活性显著下降（Ｐ＜０．０１），但低强度组的下降无显著性（Ｐ＞０．０５）。
Pregnant mice were irradiated with VDT pulsed magnetic fields, peak magnetic flux densities of 40 μT and 4 μT (time derivatives of 3.3 T / s and 0.33 T / s) for 5 hours per day and 6 days per week. The results showed that the activity of succinate dehydrogenase in hypothalamus of offspring rats was significantly decreased (P <0.01) compared with sham radiation group, but there was no significant difference in low intensity group (P> 0.05).