Samples should be cut and processed to obtain a testsurface.
试样应切割加工，以便获得检验面。
2
Once surface is clean and dry, testsurface and be sure that it's clean.
一旦表面清洁，干燥，测试表面，并确保漆面是干净的。
3
A system consisting of CCD sensor and computer may be used to testsurface braiding Angle of three dimensional composite material preform, and analyse its unevenness.