...所需空间不超O(logn）的算法问题的集合”（即为L），“存在深度为O(logn)，输入的度（fan-in）为O(1)的电路族（circuit family）的算法问题的集合”（即为NC）等等复杂性类。
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提出了一类新颖的不间断高功率因数交流开关电源电路结构与拓扑族。
Novel circuit structure and topologies family of uninterruptible AC switching power supplies with high power factor are proposed.
提出并深入研究了高频脉冲交流环节逆变器电路拓扑族及其双极性移相控制策略。
A circuit topology family of inverters with high frequency pulse AC link and a double polarities phase-shifting control strategy are proposed and deeply investigated.
提出并深入研究了高频脉冲交流环节逆变器电路拓扑族及其双极性移相控制策略。
A circuit topology family of inverters with high frequency pulse AC link and a double polarities phase shifting control strategy are proposed and deeply investigated in this paper.
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