| 单词 | discharge tube |
| 释义 | discharge tube【电】 放电管 discharge tube discharge tube n.（名词）A closed insulating vessel containing a gas at low pressure through which an electric current flows when sufficient voltage is applied to its electrodes.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 |
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