电路导通器是一种简单的量测仪表，它只能检查电路的通断状况。
The circuit tester is a simple test instrument which only shows whether the circuit is intact or whether there is a break.
该电阻器还应当有足够高的额定功率，以满足齐纳管导通时的功率耗散要求。
The resistor must also be rated high enough to meet the power dissipation requirements while the zeners are conducting.
介绍了由单片机控制的可控硅电路，该电路运用外部中断获得同步信号，用定时器做导通角控制，并给出实用程。
The controllable silicon circuit controlled by monolithic microcomputer is introduced, which adopts external interrupt to obtain sync signals and controls conducting angel with a timer.
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