single-pole double-throw switch

switch - 英汉词典 ... set switch 设定开关 single-pole double-throw switch 单刀双掷开关 switch 开关，电键 ...

游艇专业... ... 单脚书桌 single pedestal desk 单极双投开关 single-pole double-throw switch 单索绞机 single purchase winch ...

... single-pole double throw 单刀双掷，单刀双投 single-pole double-throw switch 单刀双掷并关 single-pole fusing 单极熔断 ...