The key of the precision analysis of the PMT is to establish cutting tools pose error model, and put forward the establishing idea of error model of the PMT.
接着指出并联机床精度分析的关键是建立刀具位姿误差模型，并提出并联机床误差模型的建立思想。
The error model was verified by computer simulation, and the result indicates that the error model established can approximately report the changing trend of the actual pose errors.
最后，通过计算机仿真对误差模型进行了验证，结果表明，该误差模型能够反映实际姿态误差的变化。
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