1. 放电：electric dipole moment 电偶极 | electric discharge 放电 | electric field 电场

2. 放电=放電：electric disc sander == 电动打磨砂盘 | electric discharge == 放电=放電 | electric discharge atomic vapor laser == 放电原子蒸汽激光器

3. 电火花：139.double action双动 | 140.electric discharge 电火花 | 141.feed rate进给速度

noun

1. electrical conduction through a gas in an applied electric field

Synonym: dischargesparkarcelectric arc