double-pole double-throw

... Dual Point Distributor 双白金分电盘 Double-Pole Double-Throw 双刀双掷开关 Diesel Particulate Filter 柴油机微粒过滤器 ...

... double-pole double-throw switch 双刀双投开关 double-pole double-throw 双刀双投(开关 double-pole fuse 双极熔断器 ...