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однополюсный переключатель на два направления stresses
commun.	single pole double throw switch (The term SPDT stands for Single Pole Double Throw Switch which is used to control two dissimilar circuits through a similar single input.)
O&G, sakh.	single-pole double-throw (SPDT)
tech.	single-pole double-throw switch
однополюсной переключатель на два направления
energ.ind.	single-pole double-throw switch