2Eman K F, Wu B T. A generalized geometric error Model for Multi-Axis Machines [ J] .Annals of CIRP, 1987 ( VOL. 36), 1 : 253-256.
3Lo C I-I, Yuang J X,Ni J.An application of real-time error com- pensation on a turning center [ J ]. International Journal of Machine Tools & Manufacture, 1995 (12) : 1669-1682.