早期计算机的运算速度低，对当时的科学计算和数据处理影响还不大，但不能适应机床实时控制的要求。
Early computer's computational speed low and the prevailing scientific computing and data processing is not affected, but can not meet the requirements of real-time control machine.
早期计算机运算速度低，对当时的科学计算和数据处理影响还不大，不能适应机床实时控制的要求。
Early computer operation speed is low, the time for scientific computing, and data processing impact is not quite, can not adapt to the requirements of real-time control machine tools.
提出了一种具有机床动力学自适应能力与曲线前瞻控制能力的NURBS曲线插补算法。
NURBS interpolation algorithm, which can fit diverse machine tool's kinetic characteristics and has the function of look-ahead control, is proposed.
对于对位置伺服系统性能有较高要求的虚拟轴机床数控系统，传统的PID控制方法和自适应控制不能达到满意的控制效果。
For virtual axis machine tool that is strict with position servo system, the traditional PID and self-adaptive control method can't obtain the satisfied control effect.
对于对位置伺服系统性能有较高要求的虚拟轴机床数控系统，传统的PID控制方法和自适应控制不能达到满意的控制效果。
For virtual axis machine tool that is strict with position servo system, the traditional PID and self-adaptive control method can't obtain the satisfied control effect.
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