另一是由高能脉冲激光释放电子，记录预放电电子电流波形来确定混合气体的临界电场强度。

And the other is to use the recordings of the electron current waveforms in the gas mixtures studied in a discharge chamber.

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本文讨论了在很广的实验参数范围内O_2—CO_2混合气体中的预放电过程的各种反应及电流的增长。

Current growth curves have been obtained in O_2-CO_2 mixtures over a wide range of experimental parameters.

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