常見例句Describes a new design of pulse frequency dividers in which timers NE556 and sequencecontrol unijunction transistors are used. 利用定時器NE556和程控單結(jié)晶體管，設(shè)計了一種新型多路脈沖分配器。equivalent unijunction transistor 等效單結(jié)晶體管unijunction photosensitive semiconductor 單結(jié)光敏半導(dǎo)體unijunction switching transistor 單結(jié)開關(guān)晶體管programmable unijunction transistor 可編程序單結(jié)晶體管light-activated programable unijunction transistor 光敏可編程序單結(jié)晶體管 返回 unijunction