短語詞組短語excitation systemceiling voltage ratio 勵磁系統(tǒng)頂值電壓倍數(shù)self excitation constant voltage 自勵恒壓excitation system voltage 勵磁電壓excitation n voltage 激發(fā)電壓excitation forcing voltage ratio 強(qiáng)勵電壓倍數(shù)excitation variable voltage 勵磁電壓excitation system voltage response time 勵磁系統(tǒng)電壓響應(yīng)時間Self -excitation excess voltage 自激過電壓excitation system voltage time response 勵磁系統(tǒng)電壓 返回 excitation voltage