“periodic reverse permanent magnet focusing”的概念、定义、翻译、参考文献-科学参考

单词	periodic reverse permanent magnet focusing
释义	periodic reverse permanent magnet focusing Encyclopedia 工学电子注聚焦释 periodic reverse permanent magnet focusing周期反转永磁聚焦极性相反的径向磁化的永磁铁沿电子注行进方向排列，产生周期反转磁场的永磁聚焦方式。
随便看	spermatogonial stem cell spermatogonium spermatophora spermatophore spermatophore sac spermatophore transplantation spermatophorin spermatophorotype spermatorrhea spermatotreme spermatozoid spermatozoon sperm capacitation sperm carrier technology sperm cell sperm cold shock sperm competition sperm concentration sperm deformity rate sperm detection sperm glycolysis index spermiation spermidine spermidium spermine

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