指出了传统EL显示器驱动电路存在的问题。 用“平衡驱动”的概念，设计了矩阵式EL显示器驱动电路系统。
The defects in traditional drive circuit existing in availabele EL monitors are pointed out Matrix drive circuit system for EL monitor is designed using the conception of "balanced drive".
摘要：矩阵式键盘提高效率进行按键操作管理有效方法，它可以提高系统准确性，有利于资源的节约，降低对操作者本身素质的要求。
Abstract: Matrix keyboard key operation management efficiency and effective method, which can improve the system accuracy, to save resources, reduce the operator itself quality requirements.
分析结果表明，基于矩阵式交交变频的柔性分频输电系统在开发利用我国的水电资源和远距离输电中是一种极有潜力的输电方式。
The analysis results show that FFFTS is a promising transmission type in developing hydroelectricity resources and long distance power transmission in our country.
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