5F Q Wei, K Dreyer, H Umbricht. Status of the SLS Alignment System [ EB/OL]. http ://www-group. slat. stanford.edu/met/ IWAA/TOC_ S/2002conf. htm, 2006-04-02.
6Axyz Mathematics for users [ CD ]. Switzerland. Leica Geosystems AG, 2002.
7Dong lan. The Alignment of BEPCII LINAC [ EB/OL]. http ://iwaa2004. web. cern. ch/IWAA2004/, 2005. 12.
9Joseph M. Calkins, Robert J. Salerno. A Practical Method for Evaluating Measurement System Uncertainty [ EB/OL ]. http://www. kinematics. com/, 2006-04.