They could also be used as electric components and power sources for small electrical equipment and direct current switches 另外超极电容还可用作电路元件、小型用电器电源、直流开关电源等，近年来已经成为研究的焦点。
2.
They can also be used as electric components and power sources for small electrical equipment and direct current switches . now supercapacitors have become a hotspot in research 另外超级电容器还可用作电路元件、小型电器电源、直流开关电源等，近年来已经成为研究的焦点。
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They could also be used as electric components and power sources for small apparatus or direct current switches . supercapacitors have become a hotspot in research because of their wide application foreground 它也能用作电路元件、小型用电器、直流开关电源等用途，具有广阔的应用前景，近年来已成为研究的热点。
