The high frequency switch-mode power supply focused by this subject mainly used in galvanoplastics(NDF), electrification(NCF), electrical chemistry(NHF), and excitation(NLF).
Objective To observe the nucha electrical acupuncture Intervening at early times preventing the occurrence of poststroke depression(PSD)in acute cerebral infarction(ACI)patients.
High precision instruments of measuring electrical resistivity and magnetoresistivity are needed to study the inner structure and resistance characteristic of nanocrystalline materials.
Insulance Ohmmeter, Model ZC25, can be used to measure insulation resistance of various electrical machinery, telecommunication element, household appliances and teaching electrical equipment.