在这一区域内，阳极位降、阳极位降区厚度主要由放电电流和气体压强所决定。

In this region, its thickness and potential fall are mainly determined by discharge current and gas pressure.

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放电管：装有低压气体的封闭绝缘容器，当电极有足够的电压时，通过它电流就开始流动。

Discharge tube: a closed insulating vessel containing a gas at low pressure through which an electric current flows when sufficient voltage is applied to its electrodes.

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在充满氙气的灯柱中的两个电极之间进行火花放电将产生“电离气体管”，电流通过该管流动，从而导致气体发光。

A spark discharge between two electrodes produces an "ionised gas tube" in the xenon gas-filled lamp piston through which electric current flows which in turn causes the gas to light up.

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