Based on an analysis of connotation and extension of the concept of the orthogonal curvilinear coordinates. we have deduced a platform of strain tensor expression of Cartesian coordinates. which turns out to be a function of Lame coefficient and unit vector. By using transform matrix between Cartesian coordinates and orthogonal curvilinear coordinates. https://www.roneverhart.com/HP-EliteDisplay-S14-14-FHD-LED-Monitor-1080p-Portable-Display-60Hz-5ms-16-9-200-cd-m-700-1-USB-C-3HX46A8/