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。
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.
具有电压调节范围宽，电路简单，输出稳定，可靠性强，人机交互接口优良，应用范围广泛等特点。
And it has the features of wide range regulation of voltage, simple circuit, output stability, reliability, excellent interactive interface, being widely used and so on.
系统具有可靠性高，功能全，良好的人机交互界面。
The system has the high reliability, function entire, and good man-machine interactive contact surface.
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