... Edition), No 2, (1996), pp. 8 9-9 9, ISSN 100 0-9 34 5 Xie, Y. On the System Theory and Modeling of Tribo-Systems. Tribology, Vol .30 , No.1, (2010), pp. 1-8 , ISSN 100 4-0 595 (In Chinese) Xie, Y. On ... Chinese) Xu, S. (2007). Digital Analysis and Methods. China Machine Press, ISBN 97 8-7 -1 1 1-2 066 8-2 , Beijing, China (In Chinese) Tribology - Lubricants and Lubrication 48 Butterflies become ... pressure is estimated to be 35 00 MPa. Tribology - Lubricants and Lubrication 32 Dai, Z.; Xue, Q. Exploration Systematical Analysis and Quantitative Modeling of Tribo-System Based on Entropy...