... external heat source 外部热源 external impedance 外阻抗 external initiator 外部引发源(地震,洪水等) ...
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The active filter acts as an infinite impedance to the external for the fundamental frequency and as a low resistor for harmonic frequencies.
对外电路而言,在基波频率下有源滤波器被控制为无限大阻抗,在谐波频率下被控制为小电阻。
Simulation results indicate that dual slope algorithm is of high stability during external faults and is very sensitive to high impedance internal faults.
仿真结果表明:双比率算法较单比率算法,具有外部故障高稳定性,而在内部高阻故障时,也有很高的灵敏度。
They have a simple construction with low power dissipation and low output impedance and can be used as interfacing circuits in VLSI designs to reduce the number of external connections on a chip.
它们有一个低功耗与低输出阻抗的简单结构,可以用作超大规模集成电路设计中的接口电路,以减少基片的外部引线数。
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