相关期刊:《Science China(Technological Sciences)》《International Journal of Coal Science & Technology》《Underground Space》《Journal of Minerals and Materials Characterization and Engineering》更多>>
Under the premise of fully respecting current national standard of table tennis ball,this paper presents an integrated and effective method for testing diameter,roundness and hardness of table tennis ball based on vis...
supported by the National Natural Science Foundation of China(No.50705002,50627501)
Reomtly, Coordinate bieasuring Machines (CMMs) are widely used to measure roundness errors. Roundness is calculated from a large number of points collected from the profiles of the parts. According to the Guide to t...