第一开关电路耦 接至电平转换器，并在第三晶体管导通时，关闭第四晶体管。
The first switch circuit is coupled to the electrical level translator and turns off the fourth transistor when the third transistor is turned on.
晶体管收音机伴你走四方。
第一款晶体管收音机-丽晶TR - 1（RegencyTR-1），1954年以49.99美元的价格面市，其中包含四个晶体管。
The first transistor radio, the Regency TR-1, went on the market for $49.99 in 1954. The radio contains four transistors.
讨论了基于MOS晶体管亚阈值区特性的CMOS四象限模拟乘法器的设计。
The design technique for a CMOS four quadrant analog multiplier is presented, which is based on the characteristics of the MOSFET subthreshold region.
本文采用较全面的包括四个寄生双极晶体管和MOS管的闩锁模型，详细分析了瞬态辐照下CMOS反相器的闩锁效应。
In this paper, a new lumped elements latchup model consisting of four bipolar transistors is used to analyze the latchup effect of CMOS inverters in transient radiation environment.
新型晶体管的开关时间缩短了七分之四。
Switching times of the new type transistor is shortened by four-sevenths.
我们进入了第四种模式，即晶体管，最后是积体电路。
We went to the fourth paradigm, transistors. And finally integrated circuits.
我们进入了第四种模式，即晶体管，最后是积体电路。
We went to the fourth paradigm, transistors. And finally integrated circuits.
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