Because of the existence of the electric field around the cathode, the escaped energy of the electron can be effectively reduced. Therefore the current density of the cathode in the arc discharge lamp can be increased.

  • 弧光放电灯阴极电场的存在,可以有效地降低电子逸出功,从而增加了弧光放电灯的阴极电流密度。

  • 互联网摘选 2025-01-19 23:47:11

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