four circuits on one tower 同塔四回
miniature switch for four circuits 四路微型开关
four-wire circuits 四线电路
She ran four circuits of the track.
她在跑道上跑了四圈。
Experiment results of simulating on lines with two, three, and four circuits validate the proposition. Verifications, complements and modifications are made for some of the literatures.
两回、三回、四回线路的仿真实验结果验证了命题的正确性，对部分文献结果进行了检验、补充和修正。
Four applied circuits of NE570 are given.
文中给出了NE570的四种应用电路。
应用推荐