For inspecting topological and geometrical unanimity of a solid model, principle of closed path topology and Euler′s formula are important tools.
闭路拓扑原理和欧拉公式是检验实体模型边界表示的拓扑与几何一致性的重要工具。
The connectedness of the non-empty closed subsets hyperspace with locally finite topology is discussed and a cardinal function called discrete degree is introduced.
讨论了赋予局部有限拓扑的非空闭子集超空间的连通性，还引入了一个对讨论局部有限超拓扑有用的基数函数，称为离散度。
In this paper the local compactness of the nonempty closed subsets hyperspaces with locally finite topology is discussed.
本文讨论了赋予局部有限拓扑的非空闲子集超空间的局部紧性。
The inverter uses full bridge topology and SPWM technique. The inverter voltage is controlled by single closed loop feedback based on PID.
逆变器采用全桥型的拓扑结构，利用了SPWM逆变技术，逆变电压控制通过简单的单环反馈实现，控制方法采用PID算法。
The inverter uses full bridge topology and SPWM technique. The inverter voltage is controlled by single closed loop feedback based on PID.
逆变器采用全桥型的拓扑结构，利用了SPWM逆变技术，逆变电压控制通过简单的单环反馈实现，控制方法采用PID算法。
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