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同时装载DLL与驱动，设置多媒体定时器进行定时采样。
Simultaneously DLL and driver was loaded, multi-media timer was set up to sample regularly by timer.
本文深入分析了CNC系统体系结构、实时控制与定时采样机制、三维加工轨迹跟踪技术。
In this paper we analyze CNC system structure, real-time control and timing sampling mechanism, three-dimension process trace technique.
通过三次样条插值，从定时采样的数据中获得整周期采样的数据，经过实验，证明是可行的。
Through thrice spline interpolation, we get full period sampling data from fix time sampling data. This method is proved feasible by an experiment.
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