This paper discusses the basic theory of digital valves and digital hydraulic systems and focuses on the high pressure, large flow direct digital relievers which have been developed recently.
对数控液压系统及数字阀作了理论上的探讨。并着重对作者近年来研制的一种新型高压大流量直接式数字溢流阀，进行了理论分析、数字仿真以及试验研究。
As a direct design procedure for the digital controller, sampled data systems control has received wide attention in these years.
采样控制作为一种数字控制的直接设计方法，近年来引起了广泛的重视。
As a direct design procedure for the digital controller, sampled data systems control has received wide attention in these years.
采样控制作为一种数字控制的直接设计方法，近年来引起了广泛的重视。
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