[电]?双断开关

... double-bank switch 双触排开关 double-break switch 双断开关 double-coincidence switch 双重合开关；二重符合开关 ...

?双刀开关

... double-bonded hydrocarbon 双键烃类 double-break switch 双刀开关 double-byte character set 双字节字符集 ...

?双断裂关

centrifugal starting switch 离心式起动开关 double-break switch 双断裂关 gate-controlled switch (gcs) 闸控开关 ..

?双断路开关

... 双断开接点 double break contact; double-break contact 双断路开关 double break switch; double-break switch 双断面轮胎 condual tire ...