【运输】滤波器（梯级过滤器）【电学】电的波浪型过滤器（梯子状过滤器）

electric equipment

electric pole

low-noise and low vibration electric machine【电】

spark ignition, electric with two or more sparking plugs for internal-combustion engines

pressure-sensitive, resistor starting electric motors with pressure-sensitive resistors

localisation of trains or vehicles, electric

electric focusing

electric pencil sharpener