The flow resistance of the integrated valve is one of the key parameters for the design of the control rod hydraulic drive system(CRHDS).

控制棒水力驱动系统是核供热堆的关键系统之一 ，其运行失效将直接导致供热堆的非计划停堆。

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Theoretical analysis on the steady state property of step cylinder of the hydraulic control rod drive system for the 200 MW nuclear heating reactor have been carried out.

对水力驱动控制棒步进缸的静态保持特性进行了理论分析。

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