It is reliable to achieve autocontrol of cement grouting machine by appliance of PLC, and to improve the reliability of system.

通过应用PLC可以实现对水泥灌浆机系统的自动控制，提高系统的可靠性。

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According to the problems of low agility and reliability of the NC machine tools control system, an electric control system is designed.

针对数控机床电气控制灵活性差、可靠性低等问题，设计了一个电器控制系统。

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Based on an analysis of the composition of drilling rig, characteristics of drilling process, and human features, a reliability model of man-machine control system for drilling process is established.

在全面分析钻井机械的组成、钻进过程的特点和人的特性的基础上，建立钻机钻进过程人机系统可靠性模型。

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