双极双连开关
double pole double throw switch
双连活络开关箱
duplex adjustable switch box
发射极开关双极型晶体管
emitter switched bipolar transistors
ESBT
三相双开关PFC电路
Three-phase Double-switch PFC Rectifier
双开关磁阻伺服电动机传动系统
double-switched reluctance servo motor drive
双开关排烃模型
two-switch model for hydrocarbons expulsion
点火开关连接器
ignition switch connection
机具位置开关连接器
implement position switch connector