rough-plane
3.The dual-plane observations of fracture surface and adjacent side surface microstructures show that annealing twin boundary fracture, intergranular and transgranular cracking result in smooth planar facet, smoothly curved facet and rough facet, respectively.
4.Although some researches on the normal contact stiffness of machine joint surfaces have been made, they were all based on statistical analysis of rough surfaces. So their results are all dependent on the scale. In order to solve this problem, the fractal model for normal contact stiffness of machine joint surfaces is built up under some given hypotheses based on Hertz contact theory between a sphere and a plane and the contact fractal theory between rough surfaces, which is independent upon the scale.
同义词辨析
汉英释义

